... settings (Low, Medium, High, Bed) High efficiency, weather resistant solar panel Rain resistant housing Charge indicator showing the level of battery ... ) Charging time:10 hours approx for AC adaptor, 18 hours approx in the strong sunlight for solar panel. 3) Duration time: 1 stall 22 ... hours, 2 stall 14 hours,3 stall 7 hours, 4 ...