... 2,Flexible arm can adjust different angles 3,Eco friendly, 4,High power 3W led,up to 150lm 5,Power by solar ... CM4,Weight:536gFeatures:1, Use:5V 150mAh solar panel and 3.6V 800mAh NI-MH batteries included 2, Brightness:about 150Lumens ... ,.Discharging time: about 3-4hours 5,Green lighting,energy saving6,Press ON/OFF switch,easy to use 3 watt LED solar energy book ...