... low-light brightness decay single high power LED as light source, low power consumption, high efficiency, energy saving ... a reasonable balance 1.6, Use of an external constant current power supply, making it stable and reliable. 2,Product application ... , exhibition halls, sports venues and other landscape lighting. power:50WWork Voltage:90-264VACLuminous Flux:4000LMCRI:75Color Temp.:2800-6000kBeam ...