1.Inside there is a high capacity rechargeable lead-acid (800mAH) free maintain. 2.Alternating Current: 220V/50HZ, keep the charging 12 hours. And most charge time should be less than 15 hours. 3.Output voltage: DC4V. 4.Durable recharge period more than 500 times. 5.Using special condensing reflecting cups, the range can reach 150 meters. 6.When the battery is fully charged, the lamp can be lighted continuously about 25hours. 7.Super strong light source, please don?t shine the eyes directly. 8.Low price,suitable for developing country. Price USD 0.79 / Pcs Price Condition FOB Ningbo Origin China Material ABS Packaging blister card Delivery lead time 30days Minimum order 2000 Supply ability 50000pcs/day