... 100-120LM voltage double protection Parametres1, power of solar panel: 0.5 W2, battery : NI-MH 1.2V 1500mah3, put it ... 7-8 hours;4, there are three gears for this solar energy bag, when first one is on, 2nd gear ... voltage or over discharge. Which makes us feel free about battery.7, brightness can reach 100-120LM, visibility can reach ... pls don't touch it with sharp items! Inew Infatable Solar Cell Bag