... emergency 1,bulbs:15+4 LED 2,battery:rechargeable battery 3,material:abs 4,long life,super-brightness led bulbs ... free maintenance):high capacity lead-acid 900Mah15+4 led bulbsLong life battery could be recycling used more ... Please dont use when charging, it would burn LED bulb, or damage inner componenrs.Please dont shine ... Suggestion:charging in daylight time) Rechargeable LED mini EMERGENCY LIGHTS