Wagan Tech 12W ePanel Solar Power Panel w/ Female Car Plug 15V 12W Charge rate: 0.77A Length: 1.96" Width: 9.44" Height: 8.26" Weight: 1.9 lbs (0.86 kg) Monocrystalline solar panel charges even in cloudy and overcast weather. 2.1 Amp USB adapter included!