A Triac Constant Current LED Driver is designed to deliver a stable output current (e.g., 300 mA to 1050 mA) to LED lighting fixtures while enabling dimming via standard TRIAC (phase-cut) wall dimmers. It provides smooth, flicker-free dimming and is compatible with leading-edge or trailing-edge dimmers.
- Input Voltage: 100 – 277 VAC, 50/60Hz
- Output Type: Constant current (e.g., 300mA, 350mA, 700mA, 1050mA
- Output Voltage Range: Typically 9 – 54 V DC (varies by model
- Dimming Control:
- Triac phase-cut dimming (leading/trailing edge)
- Smooth dimming down to 1–10%
- Power Rating: Available in 5W to 60W (or more) models
- Efficiency: >85% with power factor correction (PF > 0.9)
- Protections: Overload, short-circuit, over-voltage, over-temperature
- Design: Compact size; available in plastic or metal casing
- Certifications: CE, RoHS, UL, FCC (varies by brand)
- Application: LED downlights, track lights, spotlights, and panel lights







