1,15-20W led driver 2,constant voltage or constant current power supply 3,3 Years ... For Dry, Damp Location 1,15-20W led driver 2, led power supply3,led power driver [Applications]LED Signage / Channel LetterLED Architectural LightingLED ... factor>0.95 at full load,115Vac/230VacSafety UL1310 Class 2. CE. CCCEfficiency88% TypicalDimensionL25*W16*H13 (mm)ProtectionOCP. OVP. SCP-Auto ...