... 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 ... for illumation by hanging it on bag or garments. WarnningWhile using, pls don't touch it with sharp items! New Antique Solar Lantern