... lifetime,no UV&IR,NO Hg,unbreakable,environment friendly,no flickerAPPLICATIONS: ... :2 years OTHER POWER Other Parameter: 1. Operation Temperature: -20~ 50o C ... (at 2800K) 5. Power Factor: ≥ 0.9 6. Brightness Decay: 3%-5% at 1000 ... management and lumen maintenance. 5. Wide voltage and constant current design 6. The ... ceiling light, LED wall light, LED projector lamp, LED machine light, LED underground light, ...