http://www.lightmobile.com/cpdz_show.aspx?id=412 Main parameters: Power: 3W Continuous working time in maximum brightness:≥4 h Stepless adjustable brightness, the brightness for last time use will be automatically memorized. Work Mode: strong light,low light,and flash Lithium ion battery: 2,200mAh Battery voltage: 3.7V Dimension: φ29*139mm Weight: 0.155kg
