Indicator Light
What Is an Indicator Light?
An indicator light, also called a LED indicator light, pilot light, or panel indicator light, is a visual signaling device used in electrical equipment, industrial machinery, automation systems, vehicles, and electronic devices.
Indicator lights provide instant visual feedback about machine or system status, including:
- Power ON/OFF
- Machine running status
- Warning or fault alarms
- Standby mode
- Emergency stop conditions
- Low voltage or overheating alerts
Modern LED indicator lights offer high brightness, low power consumption, vibration resistance, and long service life exceeding 50,000 hours.
They are widely used in:
- Industrial control panels
- CNC machines
- Automation equipment
- Automotive dashboards
- Marine systems
- Medical equipment
- Power distribution cabinets
- Home appliances
Professional LED Indicator Light Manufacturer
FILN specializes in manufacturing metal indicator lights, waterproof indicator lights, and panel mount LED indicator lights for industrial and commercial applications.
Available mounting sizes include: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 19mm, and 22mm indicator lights.
Supported voltage options:
- 12V indicator light
- 24V indicator light
- 110V indicator light
- 220V indicator light
FILN supports OEM & ODM customization including:
- Custom LED colors
- Laser engraved symbols
- Wire length customization
- RGB indicator lights
- IP65/IP67 waterproof designs
- Stainless steel or brass housing
How to Choose the Right Indicator Light
1. Mounting Hole Size
The mounting diameter determines compatibility with your control panel or equipment enclosure.
- 6mm–10mm: Compact electronics and instruments
- 12mm–16mm: Industrial control panels
- 19mm–22mm: Heavy-duty machinery
Most common sizes: 8mm, 12mm, 16mm, 19mm, and 22mm indicator lights.
2. Operating Voltage
- 12V / 24V DC: Automotive and battery systems
- 110V / 220V AC: Industrial machinery and appliances
Using the wrong voltage may damage the LED or reduce brightness.
3. Housing Material
- Metal indicator lights: Durable, anti-vandal, corrosion-resistant
- Plastic indicator lights: Lightweight and economical
4. Waterproof Rating
- IP65: Dustproof and water-resistant
- IP67: Waterproof for harsh environments
Waterproof LED indicator lights are ideal for outdoor, marine, and industrial applications.
5. LED Color Meaning
- 🔴 Red: Fault or danger
- 🟢 Green: Normal operation
- 🟡 Yellow: Warning or standby
- 🔵 Blue: Manual mode or reset
- ⚪ White: Power ON
6. Lens Shape
- Flat Head: Flush and modern appearance
- Concave Head: Focused illumination
- High Head: Wide viewing angle
FAQ About Indicator Lights
What is an indicator light used for?
Indicator lights display machine, power, warning, or operational status in electrical and industrial systems.
How long do LED indicator lights last?
Most industrial LED indicator lights last more than 50,000 hours.
Are indicator lights waterproof?
Yes. IP65 and IP67 waterproof indicator lights are commonly used in industrial and outdoor environments.
What is the most common indicator light size?
12mm, 16mm, 19mm, and 22mm are the most popular panel mount sizes.
Does FILN support customization?
Yes. FILN provides OEM and ODM services including voltage, LED color, symbols, housing material, and wire customization.
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