... is 10s,20s,30s or 30s,60s,90S 5,factory lamp uv 1,Model/LK-D12W2,Volt/AC100-130V ... ,Induction of automatic open Yes,put hand in lamp,the light open.6,Using life/35000hours.7,Solidification timeUsing ... Ningbo Lanker Electr- Factory put to use semiconductor luminescent device-LED as the curing light source which full up ... have a very high temperature when they give out light. The temperature is at 50°C-70°C ...