We are offering solar lanterns.1. Choice of battery voltage - 6v to 12v2. Led wattage - up to 3w3. 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 option8. Option of many batteries such as lead acid, dry battery, lithium battery9. Economical, compact design.