详情 Rechargeable, SAMSUNG Li-ion battery,3.6V 2600mAh. 2steps: 300 Lumens for work light, 3-4 hours continue use. 20 Lumens for top 0.5 W torch,10-15 hours continue use. Strong magnet on the bottom. Material: Aluminium+ABS. Charge time: about 3-4 hours. Protection: Over charge, Over Discharge and Auto shut off function. Indicater: Red for charging, Green for fully charged. Optional: 1A USB charger. suggest to charge with 1A charger.