led advertising spot light : 1.CE,UL,ROHS,GS approval 2. ... . 10 years service time 4. Asymmetr led advertising spot light :1. Use Epistar chip2. CE approval3. 5 year ... system 5. 10 years span time 6. Asymmetric light distribution, no light waste in the backside of the lamp. 7 ... 1W/PCS Epistar super brightness LED chip Led advertising spot light applied in billboard lighting , Culture park lighting ,Wall ...