... -120LM voltage double protection Parametres1, power of solar panel: 0.5 W2, battery : NI-MH 1.2V 1500mah3, put ... 8 hours;4, there are three gears for this solar energy bag, when first one is on, 2nd ... or over discharge. Which makes us feel free about battery.7, brightness can reach 100-120LM, visibility can ... can still work after staying idel for long time.2, you can use it for illumation by hanging it ...