... , cranking hand-generator2 types power source: Built-in rechargeable battery, dynamoPower supply for mobile phone, camera, etcTypical Application:Outdoor ... ITEM PARAMETERS Light source 3PCS LED, white, 12000MCD Rechargeable battery Lithium, 3.6V 120mAHCaution:Light had better to be usually used ... hours every 2 months,or it would shorten the battery life. Safety:1.The power and socket must be ...