We are offering solar lanterns. 1. Choice of battery voltage - 6v to 12v 2. Led wattage - up to 3w 3. Built in protection for short circuit,over voltage,low voltage,deep discharge,over load,panel reverse,battery reverse. 4. Very low leakage (no load) current 85% 7. Mobile charger option 8. Option of many batteries such as lead acid,dry battery,lithium battery 9. Economical,compact design.