... meters brightness: 100-120LM voltage double protection Parametres1, power of solar panel: 0.5 W2, battery : NI-MH 1.2V 1500mah3 ... 7-8 hours;4, there are three gears for this solar energy bag, when first one is on, 2nd gear means ... . WarnningWhile using, pls don't touch it with sharp items! New Antique Solar Lantern