... ,20s,30s or 30s,60s,90S 5,factory lamp uv 1,Model/LK-D12W2,Volt/AC100-130V 60HZ AC200- ... 5,Induction of automatic open Yes,put hand in lamp,the light open.6,Using life/35000hours.7,Solidification ... Electr. Factory About seven merit of led nail UV lamp Logo: BETTERTM LankeThe LED nail UV lamps of ... when it is broken. However, the LED nail UV lamp makes use of LED which is semiconductor luminescent device. ...