1. Constant Current LED Driver 2. UL, CE, RoHS, IP66 3. Input: 90 - 264VAC, 47- 63Hz input ... and moving sign applicationsHigh reliability/Low costPass UL, cUL, CE, LPS2 year warranty 20W series models: Model No. DC ... output load derating curve) Working Humidity: 20 ~ 90% RH non-condensing Storage Temp., Humidity: -40 ~ +80 , 10 ~ 95% RH Vibration ... 14.5Kg Constant Current LED Driver with 20W UL/CE