... Output: USD DC5V 4, Charging time: 8 hours Solar LED Lantern PowerSolar panel DC9V/3W, AC charging adaptorInput ... , about 3 days in strong sun light by solar panel of 9V/3W, 40% time will be ... saved if charged by solar panel of 9V/5WLighting TimeBeing fully charged, at low ... used a high-performance, high-precision 12-bit AD processing microcontroller as main control system, to achieve ...