Choosing the correct LED driver is one of the most important steps when designing a reliable lighting system. An incompatible driver can lead to flickering, reduced brightness, shortened LED lifespan or complete system failure. This guide explains the key specifications you should compare before selecting an LED driver for your project.
1. Determine the Output Type
First identify whether your LED fixture requires:
- Constant Current
- Constant Voltage
Always follow the fixture manufacturer's recommendation.
2. Check the Output Current
For constant-current drivers, verify:
- 350mA
- 500mA
- 700mA
- 1050mA
Using an incorrect current may damage the LED module.
3. Confirm Input Voltage
Choose an input range suitable for your region.
Examples:
- 120V
- 120-277VAC
- 200-240VAC
Universal input models provide greater installation flexibility.
4. Select the Right Dimming Method
Common dimming protocols include:
- 0-10V
- PWM
- Resistance
- DALI
- TRIAC
Not every lighting control system supports every protocol.
5. Consider Installation Environment
Outdoor installations require:
- Waterproof housing
- Higher IP rating
- Wide operating temperature
Indoor installations usually prioritize compact size and quiet operation.
