... ISO9001:2008 OEM Bright Light LED LampItem No:3016LED Quantity:1LEDsBattery:900mAH Charge Power 220V \50 HZ Certificate: CE ... front will work 7 hours.4.When the led bulb is dark during usage, that means battery ... and charge it in time.(Please charge before the led bulb is dark fully, otherwise it would damage ... don’t use when charging, it would burn LED buld , or damage inner components.Please don’t ...