The 19mm symbol indicator light (FL1M-19FW series) manufactured by FILN is a heavy-duty 12V metal dash light engineered for automotive dashboards, industrial control panels, marine vessels, and power distribution systems. Featuring a durable copper alloy or black zinc-aluminum alloy housing, this pre-wired signal lamp delivers IP67 waterproof performance and non-polar electrical operation for versatile AC/DC integration. FILN provides comprehensive OEM and ODM support, offering custom laser-etched dashboard symbols, specialized lead wire lengths, and multiple LED color choices (Red, Green, Yellow, Blue, White) for wholesale distributors and equipment manufacturers requiring high-reliability visual status indication.
Prior to bulk procurement, engineering and purchasing teams should confirm mounting panel thickness, operating voltage requirements, desired dashboard icon codes, and lead wire specifications with FILN technical support. Factory-direct sample ordering and small-batch production runs are available to support prototype testing and custom equipment integration.
Key Takeaways for Engineers & Procurement Specialists
- Precision Panel Cutout: Designed for standard 19mm (0.748 in) mounting hole diameters, providing secure panel lockup up to 10mm thick.
- Standardized Electrical Architecture: 12V operating voltage (FL1M-19FW series) utilizing non-polar internal LED circuitry for zero-risk AC/DC integration.
- Heavy-Duty Metal Housing: Available in electroplated silver copper alloy or scratch-resistant matte black zinc-aluminum alloy to resist mechanical impact.
- Pre-Wired Factory Assembly: Integrated 20cm 22 AWG PVC insulated lead wires eliminate panel soldering time and reduce field assembly errors.
- IP67 Environmental Protection: Supplied silicone sealing O-ring seals tight against front panels to resist dust, oil, and temporary water submersion.
- High-Contrast Custom Graphics: High-precision fiber laser etching delivers clear dashboard symbol recognition (automotive, marine, and industrial control icons).
- Long-Life LED Output: Solid-state illumination source provides 50,000 to 100,000 hours of maintenance-free continuous operation.
- Vibration-Resistant Hardware: Included stainless steel lock washer prevents nut backing in high-vibration engine bays and heavy machinery.
- Global Safety Compliance: Manufactured in an ISO9001 facility with international compliance certifications including CE, VDE, RoHS, and UL standards.
- Direct Manufacturer OEM/ODM Support: Full customization available for custom lead lengths, pre-installed quick-connect terminals, and custom voltages.
What is a Symbol Indicator Light?
A symbol indicator light is an electro-optical panel component designed to display specific functional status, operational alerts, or system faults on control interfaces using illuminated ISO standard icons or custom graphics. Unlike standard plain lens signal lights, symbol indicator lights provide immediate visual clarity, reducing operator error in complex machinery, automotive dashboards, marine vessel consoles, and industrial distribution panels.
FILN manufactures a comprehensive range of indicator solutions, categorized primarily into metal indicator lights and plastic indicator lights, with mounting diameters spanning from 6mm to 30mm. Electrical termination options include dual pin solder/quick-connect terminals and factory pre-wired lead configurations. Metal housing designs feature three distinct lens profiles to match visual and ergonomic panel requirements: flat head, prominent (convex) head, and recessed (concave) head.
The FL1M-19FW model highlights FILN's precision metal processing capability, incorporating high-contrast laser etching onto flat PC lens surfaces to withstand intense ambient light, severe mechanical vibration, and temperature fluctuations without fading or surface peeling.
Product Overview: FL1M-19FW 19mm Dash Light
The FILN FL1M-19FW 19mm symbol indicator light is a industrial panel signal component engineered for 12V vehicle control boards and equipment enclosures. Combining an electroplated metal housing with a solid-state LED assembly, the unit converts electrical control signals into uniform illuminated icons. Operating on a non-polar internal bridge architecture, the light accepts both AC and DC input without requiring specific lead polarity matching during panel assembly.
Electrically, the indicator incorporates a current-limiting surface-mount resistor tuned to maintain optimal luminous intensity (500–800 mcd) while limiting power consumption to approximately 0.2W at 12V DC. Mechanically, the threaded copper alloy body passes through a 19mm panel hole, secured from behind via a heavy-duty hex nut. The front flange captures a high-density silicone O-ring, compressing against the panel surface to establish an IP67 barrier against fluid ingress.
Compared to conventional snap-in plastic indicators, the metal FL1M-19FW provides superior structural integrity, resisting torque distortion during installation and preventing fatigue cracking under severe environmental exposure. Certified under international ISO9001, CE, VDE, RoHS, and UL testing frameworks, it serves as a standardized status component for high-reliability industrial and automotive OEM applications.
Quick Specifications
| Product Description | 19mm Metal symbol indicator light with pre-wired leads |
| Indicator Light Model | FL1M-19FW |
| Mounting Hole Size | 19 mm (0.748 inches) |
| Rated Voltage | 12V AC/DC (3V–480V options customizable upon request) |
| LED Color Options | Red (R), Green (G), Yellow (Y), Blue (B), White (W) |
| Waterproof Protection Rating | IP65 / IP67 (front panel sealing) |
| Wiring Type | 2PIN pre-wired lead (20cm standard, non-polar connection) |
| Head Profile Type | Flat head lens with laser-etched symbol icon |
| Surface Finish Quality | Smooth and flat finish without burrs, oxidation, cracks, or plating defects |
| Assembly Integrity | Head and base sub-assemblies press-fitted, resisting rotation, detachment, tilt, or operational deformation |
Performance Parameters
| Parameter Category | Technical Specification | Test Conditions / Standard Value |
|---|---|---|
| Rated Operating Voltage | 12V DC/AC standard | Customizable from 3V to 480V AC/DC |
| AC Line Frequency | 50 / 60 Hz | Applicable for alternating current operations |
| Rated Operating Current | ≤ 20 mA | Measured at nominal 12V input voltage |
| Rated Power Dissipation | Approx. 0.2 W | Low thermal generation architecture |
| Insulation Resistance | ≥ 100 MΩ | Tested at 500 V DC between lead wires and metallic shell |
| Dielectric Voltage Proof | 1500V – 1800V AC | 1 minute exposure with zero insulation breakdown or flashover |
| Expected Operational Life | 50,000 h – 100,000 h | Continuous duty under rated thermal conditions |
| Ingress Protection Rating | IP65 / IP67 | IEC 60529 standard sealing with front panel O-ring |
Component Materials
| Component Sub-assembly | Material Selection | Engineering Purpose & Advantage |
|---|---|---|
| Metallic Shell / Body | Nickel-plated Copper alloy / Black-plated Zinc-aluminum alloy | Provides mechanical rigidity, impact strength, electromagnetic shielding, and chemical corrosion resistance. |
| Internal Base / Housing Holder | PA66 Polyamide (Nylon 66) | High electrical insulation capability, flame retardancy, and structural strength at elevated temperatures. |
| Lampshade / Lens Cap | Polycarbonate (PC) | High optical clarity, UV stability, and thermal resistance for laser symbol etching. |
| Luminescent Source | High-brightness Solid-State LED Chip | Delivers uniform luminous intensity, low power consumption, and long operational lifespan. |
| Internal Resistor | Carbon Film / Metal Film Resistor | Regulates operating current to safeguard the LED matrix against minor line voltage surges. |
| Conductor Wire Leads | PVC Insulated Copper Wire (22 AWG, 20cm) | Flexible stranded copper wire ensures stable conductivity and simplified crimping/soldering connections. |
| Fastening Hex Nut | Nickel-plated Copper alloy | Precision machined threads allow high clamping torque without thread stripping. |
| Panel Sealing O-Ring | Silicone Rubber / Silica Gel | Flexible elastomeric compression seal maintains IP67 waterproof barrier across extreme temperature ranges. |
| Lock Washer / Plum Blossom Gasket | 304 Stainless Steel | Exerts continuous spring force to lock the nut securely against severe mechanical vibration. |
Environmental Performance
This environmental test specification establishes the general operational range for the FILN Metal Indicator Light series (FL1M-19FW). Components are engineered to maintain structural and electrical integrity when installed in demanding industrial enclosures and outdoor vehicle platforms.
| Environmental Reliability Test | Test Standard / Exposure Parameters | Pass Criteria |
|---|---|---|
| Operating & Storage Temperature | -40°C to +80°C (-40°F to +176°F) | Normal electrical operation with stable luminous output. |
| Operating Relative Humidity | ≤ 85% RH at +40°C | No internal moisture condensation or insulation breakdown. |
| High Temperature Survival Test | 96 hours exposure at +80 ± 2°C | Zero structural deformation, lens discoloration, or current shift. |
| Low Temperature Survival Test | 96 hours exposure at -40 ± 2°C | No mechanical embrittlement or delayed LED startup. |
| Constant Temperature & Humidity Test | 96 hours at +40 ± 2°C, 90% to 95% RH | Insulation resistance maintains ≥ 100 MΩ. |
| Thermal Temperature Cycling Test | Alternate between -40°C (30 min) and +85°C (30 min), 5 complete cycles | O-ring elasticity preserved; zero housing seal degradation. |
LED Chip Technical Specifications
Absolute Maximum Ratings
Defines the absolute safe thermal and electrical limits of the integrated solid-state LED chip:
| Parameter | Symbol | Absolute Maximum Limit |
|---|---|---|
| Peak Forward Current | IFP | 20 mA |
| Reverse Voltage | VR | 5 V |
| Power Dissipation | PD | 60 mW |
| Operating Temperature | TOPR | -40°C to +80°C |
| Storage Temperature | TSTG | -40°C to +100°C |
| Lead Soldering Temperature Limit | TSOL | Max. 260°C for 3 seconds maximum |
Electro-Optical Characteristics
Electro-optical measurements taken at an ambient test temperature of Ta = 25°C:
| Electro-Optical Parameter | Test Condition | Measured Parameter Range / Value |
|---|---|---|
| Forward Voltage (VF) | IF = 20 mA | 2.8 V (Min.) – 3.2 V (Max.) |
| Reverse Current (IR) | VR = 5 V | 5 µA (Max.) |
| Viewing Angle (2θ1/2) | IF = 20 mA | Typical 60° broad angle view |
| Luminous Intensity (Iv) | IF = 20 mA | 500 mcd (Min.) – 800 mcd (Max.) |
| Recommended Forward Current (IF) | Standard Operation | 20 mA typical |
| Dominant Wavelength (λd) | IF = 20 mA (Green LED) | 520 nm – 525 nm |
| Junction Temperature (Tj) | IF = 20 mA | 125°C Max. |
| Thermal Resistance (RJP) | IF = 20 mA | Typical 8°C/W |
Standard Test Conditions & Calibration
Unless otherwise specified in product purchase orders, all electro-optical and mechanical parameters for FILN indicator lights are measured under standard laboratory atmospheric conditions:
| Condition Parameter | Standard Laboratory Range |
|---|---|
| Ambient Temperature | 5°C to 35°C |
| Relative Humidity | 45% to 85% RH |
| Barometric Air Pressure | 86 kPa to 106 kPa (860 mbar to 1060 mbar) |
Measurement Calibration Notes:
- Luminous intensity and dominant wavelength measurements are calibrated in accordance with the CIE international human eye visual response curve standards.
- Luminous intensity test tolerance: ±15%.
- Forward/operating voltage measurement tolerance: ±0.1V.
Industrial Applications & Selection Guide
Featuring a high-strength copper alloy or electroplated zinc-aluminum shell, metal symbol indicator lights provide high mechanical impact resistance and IP67 sealed protection for harsh environments. While standard plastic indicators suffer thermal embrittlement, UV discoloration, and chemical degradation under continuous industrial operation, metal symbol indicators deliver long-term structural reliability. Below are primary industry applications:
1. Industrial Automation & CNC Machinery Manufacturing
Industrial workshops present continuous vibrations, cutting oil splashes, and mechanical impacts. Metal indicators represent the primary signal solution for automated manufacturing equipment:
- CNC Machine Tools & Machining Centers: Mounted on operator consoles using Red, Yellow, and Green symbol indicators. Green signals normal program execution, Yellow indicates standby/setup warnings, and Red flags emergency stops or system faults. The metallic shell resists cutting fluid corrosion and hot metal chips.
- Automation Control Enclosures: Installed on power distribution panels and PLC cabinets (6mm, 8mm, and 19mm cutouts) to provide status display across 12V, 24V DC, or 220V AC control loops.
- Hydraulic & Pneumatic Equipment: Displays pump activation and pressure limit status. The pre-wired terminal construction keeps internal LED solder joints secure against severe machine vibration.
2. Outdoor Power, EV & Renewable Distribution Systems
Outdoor equipment requires resistance to thermal expansion, rain ingress, and UV radiation:
- Electric Vehicle (EV) Charging Stations: Flat-head metal status indicators display charging state. Flashing green/blue indicates active charging, solid light signals full charge, and flashing red alerts ground faults. IP67 sealing resists vandalism and weather exposure.
- Solar Inverter & Combiner Boxes: Installed on outdoor photovoltaic distribution panels to display grid synchronization and inverter status across operating temperatures from -40°C to +80°C.
3. Transportation, Heavy Machinery & Marine Equipment
Mobile platforms require resistance to road shock and marine salt spray corrosion:
- Heavy Duty Construction Vehicles: Integrated into excavator, crane, and tractor dashboards to report engine oil pressure, coolant temperature, brake status, and transmission faults.
- Marine Consoles & Port Machinery: Plated brass or stainless steel indicator shells resist salt spray corrosion, while elastomeric O-rings prevent deck water penetration into control housing.
4. Commercial Self-Service & Public Security Terminals
Public access terminals are prone to heavy physical wear and intentional impact:
- Vending Machines & Ticketing Kiosks: Paired with vandal-resistant pushbuttons to indicate coin insertion, payout status, and system ready modes.
- Fuel Dispenser Panels: Metallic housings isolate internal electrical components to meet safety guidelines in hazardous fuel vapor zones.
LED Indicator Color Meanings & Application Guide
Standardized indicator lens color coding helps operators assess system states quickly. Color conventions vary based on regional industrial standards (such as IEC 60073 or ISO 7000), equipment design specs, and specific industry practices. FILN provides single, dual, and tri-color LED configurations across the following primary spectra:
| Color | Common Industrial Meaning | Typical Equipment Status | Recommended Application | Important Engineering Notes |
|---|---|---|---|---|
| Red | Danger, Alarm, Immediate Fault | System trip, over-temperature, low oil pressure, emergency stop active | Safety warning panels, engine fault alarms, emergency control units | Requires immediate operator intervention. Standard high-priority warning color. |
| Green | Normal Operation, Safe, Ready | System energized, pump running, process permissive met, normal power | Machine running lights, EV charging completed status, power-on displays | Indicates safe conditions. In some legacy power systems, green can designate a open/de-energized breaker. |
| Yellow / Amber | Caution, Standby, Abnormal Condition | Filter maintenance required, high temperature limit approaching, pre-heating | Glow plug status, hazard warning flashers, preventative alert displays | Signals conditions requiring monitoring before safety limits are exceeded. |
| Blue | Mandatory Action, Specific Function Active | High beam headlight engaged, auxiliary function active, customer-defined state | Automotive dashboard high-beam icons, custom functional status lights | High contrast visual presence. Avoid over-use in dark vehicle cabs to limit operator fatigue. |
| White | System Operational, Neutral Signal | Main power bus energized, general status indicator, lighting system active | Custom dashboard symbol backlighting, general panel power displays | Provides clear contrast for complex laser-etched custom iconography. |
Step-by-Step Installation Guide
Follow this standardized installation procedure to ensure IP67 waterproof seal integrity and mechanical lockup on control panels:
- Required Installation Tools: Prepare a 19mm hole punch or step drill bit, deburring tool, 22mm open-ended torque wrench, wire strippers, and crimping tools.
- Panel Hole Preparation: Drill or punch a clean 19mm (0.748 in) circular mounting hole into the target panel. Remove all internal metal burrs and oil residue around the hole rim to ensure flat sealing contact.
- Sealing O-Ring Positioning: Slide the provided flexible silicone O-ring onto the threaded body of the metal indicator light, seating it flat against the underside of the front lens flange.
- Front Panel Insertion: Orient the front lens symbol graphic correctly and insert the pre-wired assembly from the outer face of the panel through the 19mm opening.
- Rear Lock Washer Alignment: Working from the rear face of the panel, slide the 304 stainless steel plum blossom lock washer over the 20cm wire leads and threaded body.
- Hex Nut Securing: Thread the nickel-plated brass hex nut onto the body. Hand-tighten until seated, then use a torque wrench to tighten to 1.5 – 2.0 Nm. Ensure the front symbol remains level during final tightening.
- Electrical Termination: De-energize the circuit before connecting wire leads. Connect the two 20cm AWG22 conductors into the 12V supply circuit using insulated quick-connect crimp terminals, solder joints with heat-shrink tubing, or terminal blocks.
- Final Installation Inspection: Verify front O-ring compression around the panel rim. Confirm zero axial rotation or wobble before restoring line power for test operation.
Wiring Guide: Pin Terminals vs. Pre-Wired Leads
Choosing the right electrical connection type depends on assembly line automation requirements, panel depth restrictions, and field service preferences. Below is an engineering comparison between pin terminal and pre-wired lead indicator lights:
| Evaluation Factor | Pre-Wired Lead Type (FL1M-19FW) | Pin Terminal Type (Soldering / Quick-Connect) |
|---|---|---|
| Installation Speed | Fast: Directly splice or join using inline quick lever nuts or butt connectors. | Moderate: Requires manual wire stripping and hand soldering or crimping female quick-disconnects. |
| Vibration Reliability | Superior: Epoxy sealed internal wire joint prevents lead fracture under severe shock. | Standard: Soldered pins can fatigue or loosen under continuous high-frequency vibration if unanchored. |
| Rear Space Requirement | Requires depth for 20cm bend radius, though flexible wires route easily around obstacles. | Compact: Compact rear body profile suits ultra-shallow control boxes. |
| Field Maintenance | Requires wire cutting/re-stripping if inline connector is omitted. | Simple: Push-on spade connectors allow tool-less swap-out. |
| Polarity Sensitivity | Non-Polar: Integrated bi-directional bridge allows either wire to connect to + or -. | Varies: Requires verification of terminal markings unless non-polar chip option is selected. |
Pre-Wired Wiring Instructions: Direct-wired indicators utilize 20cm 22 AWG insulated leads. Secure connections can be made using lever-nut quick connectors, soldered wire splices protected by dual-wall heat-shrink tubing, or electrical tape wrapping. Safety Note: Always disconnect main power prior to servicing or making electrical connections.
Industry Knowledge Center: Engineering & Troubleshooting
Mitigating Phantom Illumination (Faint Glowing) in LED Control Loops
In industrial PLC output cards, long cable runs, and modern vehicle control modules, small leakage currents (often 0.5 mA to 3 mA) remain present even when a channel is switched off. Because high-efficiency LEDs require minimal current to illuminate, these residual leakage currents can cause the indicator to glow faintly in the off state, creating false status displays for operators.
FILN addresses phantom glowing by incorporating internal bleed resistor networks or zener bypass threshold circuits directly inside the FL1M-19FW housing. These components shunt low-level leakage currents safely around the LED chip, keeping the indicator dark until the control line supplies nominal 12V operating voltage.
Preventing Environmental Degradation & Chemical Swelling
Standard polycarbonate and ABS plastic indicator bodies deteriorate when exposed to aggressive industrial solvents, cutting fluids, or outdoor UV radiation. Micro-cracks develop over time, allowing moisture into internal circuit boards and leading to short circuits. FILN metal bodies eliminate housing degradation, while the elastomeric silicone front O-ring maintains seal integrity across temperatures from -40°C to +80°C.
Buyer Decision Guide & RFQ Checklist
Metallic Shell Material Selection Framework
Matching shell metallurgy to your operational environment helps optimize cost, corrosion resistance, and visual appearance:
| Material Option | Key Advantages | Engineering Limitations | Recommended Operating Environment |
|---|---|---|---|
| Nickel-Plated Copper Alloy (Brass) | Balanced cost, high mechanical strength, excellent thread wear resistance, classic bright metallic finish. | Plating can degrade under prolonged exposure to aggressive acid solutions. | Standard industrial machinery, control panels, automotive cabs, indoor distribution boxes. |
| Black Electroplated Zinc-Aluminum Alloy | Modern matte black aesthetics, scratch-resistant surface coating, lightweight alloy structure. | Heavy mechanical impacts may expose underlying metal if deeply gouged. | Automotive dashboards, off-road vehicle consoles, high-end commercial electronics. |
| 304 / 316 Stainless Steel (Optional) | Maximum chemical corrosion resistance, handles high-pressure washdowns, salt spray resistant. | Higher material unit cost and weight compared to plated brass or aluminum. | Marine deck consoles, food processing plants, chemical processing facilities, medical sterilization. |
Dashboard Symbol Selection Chart
FILN provides precision laser-etched symbols according to international ISO and automotive standards. Reference the specific symbol code when requesting quotations:
| Code | Symbol Name | Code | Symbol Name |
|---|---|---|---|
| 1 | Front Fog Lights | 2 | High Beam Headlights |
| 3 | Engine Start / Power Indicator | 4 | Fire Extinguisher / Fire Warning |
| 5 | Engine Check / Fault Warning | 6 | Side Marker / Low Beam Lights |
| 7 | Seat Belt Unfastened Warning | 8 | Parking Brake (Handbrake) |
| 9 | Brake System Warning / Low Fluid | 10 | Hazard Warning Lights (Double Flashers) |
| 11 | Right Turn Signal | 12 | Coolant Overheating Warning |
| 13 | Low Fuel Level Warning | 14 | Dual Turn Signals |
| 15 | Low Engine Oil Pressure Warning | 16 | Battery / Charging System Fault |
| 17 | Horn Indicator | 18 | Engine Start |
| 19 | Rear Fog Light | 20 | Right Turn Signal |
| 21 | Side Marker Lights (Position Lights) | 22 | Check Engine Light (Exhaust Fault) |
| 23 | General Hazard / Warning Triangle | 24 | Smart Key Indicator |
| 25 | Anti-lock Braking System (ABS) Fault | 26 | Exterior Light Failure Warning |
| 27 | Park Gear (P) | 28 | Neutral Gear (N) |
| 29 | Drive Gear (D) | 30 | Reverse Gear (R) |
| 31 | Brake Pad Wear Warning | 32 | 4WD / Differential Lock |
| 33 | Automatic Transmission Fault | 34 | Nitrous Oxide System (NOS) Active |
| 35 | Purge System Indicator | 36 | Critical Danger Warning (Skull) |
| 37 | Low Beam Headlights | 39 | Engine Control Unit (ECU) Fault |
| 40 | Blower Fan Active | 41 | Frost / Icy Road Warning |
| 42 | Diesel Glow Plug / Pre-Heating | 43 | Windshield Defrost / Defog |
| 44 | Rear Window Defrost / Defog | 45 | ESP / Traction Control |
| 60 | Airbag System Fault (SRS) | 61 | Door Ajar Warning |
| 63 | Overdrive Off (O/D OFF) | 82 | Windshield Washer Fluid Low |
| 90 | Tire Pressure Monitoring (TPMS) | 98 | Auto Hold / Brake Fault |
| 169 | Convertible Top Unlocked | 170 | Trunk / Tailgate Open |
| 188 | Parking Sensors / Park Assist | 189 | Headlight Washer System |
| 190 | Fuel Cap Open Warning | 207 | Lighting System Malfunction |
| 209 | Diesel Particulate Filter (DPF) | 214 | ECO Driving Mode Indicator |
| 216 | DPF Regeneration / Filter Status | 217 | Windshield Wiper Fault |
| 218 | Convertible Roof Operation Warning | 219 | Tow Hitch / Trailer Lock |
| 220 | Headlight Range Control | 221 | Adaptive High Beam / Light Angle |
| 222 | Distance Warning / Collision Alert | 224 | Cruise Control Active |
| 225 | Hill Descent Control (HDC) | 226 | Key Battery Low Warning |
| 227 | Press Brake Pedal Indicator | 228 | Speed Limiter Indicator |
| 233 | Directional Turn Signals | 234 | Service / Maintenance Required (Wrench) |
| 243 | Electric Power Steering (EPS) Fault | 244 | Brake System Service Check |
| 245 | Information Indicator (i) | 246 | Light / Lane Detection Sensor |
| 247 | Key Not Detected / Invalid Key | 248 | Remote Key Signal Warning |
| 249 | Steering Column Lock Warning | 251 | Door / Roof Open Warning |
| 252 | Lane Departure Warning (LDW) | 253 | Hood Open Warning |
| 254 | Adaptive Front-lighting System (AFS) | 255 | Side Airbag / Occupant Sensor Fault |
| 256 | Side Slip / Lane Keep Assist | 257 | Water in Fuel Filter Warning |
| 258 | Suspension System / Shock Fault | 259 | AUTO Rain-Sensing Wipers |
| 260 | Key Not Found / Engine Immobilizer | CUSTOM | OEM Custom Graphic / Logo Etching |
Procurement RFQ Checklist
Including the following specifications in your Request for Quotation (RFQ) helps FILN engineers evaluate compatibility and issue pricing promptly:
- Product Model: FL1M-19FW (or general 19mm symbol indicator light specification)
- Mounting Cutout Diameter: 19mm (0.748 in)
- Operating Voltage: 12V DC/AC (or specify custom voltage: 3V, 6V, 24V, 110V, 220V)
- LED Color Choice: Red, Green, Yellow, Blue, White (or Bi-Color / Tri-Color)
- Symbol Icon Code: Specify icon code number (1–260) or attach custom vector artwork (.AI / .DXF)
- Shell Material Finish: Nickel-Plated Brass or Matte Black Zinc-Aluminum (Stainless Steel option)
- Wiring Configuration: Pre-wired 20cm leads (specify custom length) or Pin Terminals
- Termination Accessories: Raw stripped wire ends, spade crimps, or automotive connector housing
- Target Procurement Volume: Sample evaluation quantity, initial pilot run, or annual OEM volume
- Destination Country & Compliance: Target market requirements (UL, CE, RoHS compliance)
Providing complete specifications enables FILN engineering to confirm compatibility and provide unit cost estimates efficiently.
FILN Manufacturing & R&D Capabilities
As an integrated electrical switch and indicator light manufacturer, FILN provides complete in-house capabilities from product development through high-volume production:
- R&D Engineering Support: Dedicated engineering teams located at the production factory provide technical support, custom circuit design, optical lens modeling, and 3D CAD drawing creation.
- OEM & ODM Customization: Complete support for custom laser graphic etching, specialized housing finishes, non-standard operating voltages (3V to 480V), and wire harness integration.
- In-House Testing Laboratory: Continuous quality testing covering insulation dielectric strength, thermal cycling, environmental sealing (IP67 immersion), mechanical vibration, and optical spectrum calibration.
- Prototype & Small-Batch Flexibility: Supports low-volume custom prototyping orders alongside high-capacity automated mass production lines.
- Global Logistics & Documentation: International export experience supplying equipment manufacturers across North America, Europe, Australia, and Asia, supported by complete compliance documentation.
Factory-Direct Supply: Yueqing Yulin Electronic Co., Ltd.
Yueqing Yulin Electronic Co., Ltd. (brand name FILN), located in Wenzhou, Zhejiang, was established in 2006 as a professional electrical switch manufacturer integrating R&D, production, and sales. Its premium FILN brand products are sold in over 100 countries. FILN operates a modern 10,000 m² facility with 20+ advanced production lines and an independent testing lab. Driven by scientific processes and the ISO9001 quality system, FILN ensures industry-leading innovation and electrical performance. Our certified products (UL, CE, RoHS, REACH, TUV, CB) are widely used in kitchen appliances, energy storage, EV charging, automotive, marine, and security systems.
| Production Capabilities | Indicator lights, pushbutton switches, rocker switches, toggle switches, custom wire harnesses, and tailored electrical components. |
| Quality & System Certifications | ISO9001 quality system, CE, VDE, RoHS, SGS, UL, IP65/IP67 ingress ratings, TUV, CB certificates. |
| Export Footprint | Global distribution across North America, South America, Europe, United Kingdom, Australia, and Asia. |
| Manufacturing Advantage | Direct technical communication with experienced sales engineers; agile OEM/ODM customization capabilities. |
| Official Web Portal | www.cnfiln.com |
| Direct Engineering Email | inquiry@cnylin.com.cn |
Frequently Asked Questions (FAQ)
1. How to prevent phantom illumination (faint glowing) in 12v LED indicators?
Phantom illumination occurs when residual leakage currents pass through high-efficiency LEDs. FILN resolves this issue by integrating internal bleed resistors or threshold bypass diodes into the FL1M-19FW architecture, ensuring the LED remains fully off until nominal 12V operating voltage is applied.
2. Can this IP67 indicator light be washed down with caustic chemicals?
The nickel-plated brass or 304 stainless steel housing options with silicone O-rings provide excellent resistance to mild detergent washdowns. For environments exposed to aggressive caustic chemical agents or high-pressure steam cleaning, specify 316 stainless steel housing with fluoroelastomer gaskets through FILN engineering.
3. What is the mounting hole dimension required for the FL1M-19FW symbol indicator light?
The FL1M-19FW requires a standard 19mm (0.748 inch) circular mounting hole cutout on the panel. The threaded body with hex nut clamping secures panels up to 10mm thick.
4. Is polarity sensitive when wiring this 12V dash light?
No. FILN 19mm symbol indicator lights utilize a dual-directional non-polar LED chip circuit design. Either 20cm wire lead can be connected to positive or negative terminals without risk of electrical damage.
5. Can FILN customize dashboard icon symbols for specialized machinery?
Yes. FILN offers high-precision fiber laser etching for standard ISO automotive symbols and custom OEM graphics, text, or logos according to vector drawings.
6. What housing finishes are available for the 19mm metal indicator series?
The FL1M-19FW comes standard with silver nickel-plated copper alloy or electroplated matte black zinc-aluminum alloy. Stainless steel housings are available upon request.
7. What ingress protection rating does this symbol indicator light achieve?
When installed with the supplied silicone sealing O-ring and properly tightened locknut, the assembly achieves IP67 dust-tight and temporary water immersion protection.
8. What wire gauge and length are provided on the pre-wired version?
The standard FL1M-19FW features 20cm UL-certified PVC insulated 22 AWG flexible copper lead wires. Custom lengths and specialized wire jackets are available for OEM orders.
9. What operating voltage ranges are supported by FILN metal indicators?
While this specific model is optimized for 12V DC/AC systems, FILN manufactures symbol indicator lights supporting 3V, 6V, 24V, 110V, 220V, and 380V configurations.
10. What certifications apply to FILN FL1M series indicator lights?
FILN manufacturing operations and indicator products hold international quality and safety certifications including ISO9001, CE, VDE, RoHS, CCC, and UL components testing.
11. What is the expected operating lifespan of the embedded LED?
The integrated high-brightness solid-state LED light source maintains a continuous operating lifespan between 50,000 and 100,000 hours under rated operating temperatures.
12. How does metal housing performance compare to plastic indicator lights?
Metal housings eliminate UV degradation, brittle thermal cracking, impact damage, and chemical swelling common to plastic indicator housings in harsh industrial settings.
13. Can I request quick-connect wire terminals or custom connectors?
Yes. FILN provides complete wire harness assembly, including spade terminals, Deutsch waterproof connectors, Molex pins, or custom automotive plug harnesses.
14. What is the operating temperature range for the FL1M-19FW dash light?
The component functions reliably in extreme thermal environments ranging from -40°C (-40°F) to +80°C (+176°F).
15. Does the symbol illuminate evenly across the flat lens face?
Yes. The flat PC lens integrates an internal light diffuser sheet coupled with high-mcd LEDs to ensure high-contrast, uniform symbol illumination without hot spots.
16. What is the minimum order quantity for custom symbol etching?
FILN supports flexible procurement, accommodating small-batch custom prototyping orders as well as large OEM bulk production runs.
17. How do I secure the indicator light against severe mechanical vibration?
Each unit includes a stainless steel lock washer (plum blossom gasket) that exerts spring tension against the brass nut to prevent thread loosening under vibration.
18. Which LED colors are available for immediate selection?
Standard colors include Red, Green, Yellow, Blue, and White. Bi-color and tri-color LED chips are also available for multi-status panel displays.
19. How can procurement managers obtain product samples and 3D CAD models?
Submit an inquiry directly to inquiry@cnylin.com.cn or contact FILN sales engineers online to receive STEP/IGES 3D CAD models, spec sheets, and physical evaluation samples.
20. What packaging options are available for bulk distributor shipments?
Products are individually bagged with accessories and packaged in standard anti-static inner boxes and reinforced outer cartons, with custom OEM labeled packaging available.
Dear Valued Customers,
At FILN, we specialize in delivering precision-engineered indicator lights, push button switches, and rocker switches tailored to your unique requirements. While our products default to standard voltage ranges (12-24V and 110-220V), we understand that specialized applications demand flexibility.
Need a Custom Voltage Solution? Simply inform us of your desired voltage specifications (e.g., 5V, 48V, or non-standard ranges), and our engineering team will craft a solution within 10-15 business days.
Why Choose FILN for Custom Manufacturing?
✅ Expertise You Can Trust: Over 20 years of experience in industrial-grade electronic component production.
✅ End-to-End Customization: From voltage adjustments to bespoke designs (shape, color, IP rating), we adapt to your needs.
✅ Quality Guaranteed: All custom orders undergo rigorous testing to meet CE/RoHS/IP65 standards.
✅ Scalable Support: Whether prototyping or bulk orders, we ensure seamless delivery.
How It Works
Consultation: Share your technical requirements via email or our contact form.
Design & Approval: Receive 3D models or samples for confirmation.
Production & QC: Precision manufacturing with real-time updates.
Global Shipping: Trackable logistics to your doorstep.
Contact Us Today
Email: inquiry@cnylin.com.cn
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