Product description: Constant current LED Driver Output voltage 40 V Max. output power 50 W Dimmable via PWM0-10VRXDali LED dimmers Nominal life-time up to 50, 000 h 5-year guarantee HR50W-02 is a 50W 40Vdc 0-10VPWMDali Dimming Constant Current LED Driver with 100-277Vac input and IP20 rating for indoor use. This constant voltage 0-10VPWMDALI dimming LED driver is capable of 0-100% of load dimming. The Linear iron case is fully isolated and fire resistant, with screw terminals for easy installation. echnical details 40 V, 50 W Very good THD performance in wide load range < 5 % Ripple and Noise 0.18V p-p Small cross section Push terminal for simple wiring Dimming Range