... aluminum lamp cup 3W Energy saving,High efficency 2 years warranty CE&ROH life:50,000hs 3 ... *1W special energy saving high power led aluminum lamp cup (35~50W ... Celsius11) Brightness degradation: 3% - 5%1kh12) Lifespan: 50,000 hours 13) No UV or IR radiation14) Pass 4000V ... or ABS socket common on the market18)Size: 50*H58mm Application : hotels, conference rooms, offices, commercial ...