Description: The main features of this product are charging most 12V lead acid batteries, 12V lithium batteries, etc. The solar panels can also be bent 30 ° and can be installed in RVs, fishing boats, wooden houses, tents and other outdoor scenes. The power supply is energy-saving and environmentally friendly, making it ideal for outdoor work, travel and camping training. Specifications: Type: Solar panel Material: Plastic Maximum power: 64W ± 0.25W Operating voltage: 17.8V ± 0.3V Operating current: 3.6A ± 0.15A Short circuit current: 2.9A ± 0.15A Open circuit voltage: 20V ± 0.8V Temperature coefficient voltage: (0.065 ± 0.015)% / ℃ Temperature coefficient current:-(160 ± 10) mA / ℃ Temperature coefficient power:-(0.5 ± 0.05)% / ℃ Maximum system voltage: 1000V Working temperature: -40 ℃-+ 85 ℃ (-40℉-185℉) Wind resistance: 50psf (2400 Pascal) Snow resistance: 113psf (5400 Pascal) Hail effect: 25 mm (1 inch) at 23 m / s (52 mph) Item weight: 1443g Item size: Approximately 560 * 540 * 2.5mm / 22 * 21.26 * 0.98in Package size: Approximately 57.5 * 56 * 3.5cm / 22.6 * 22 * 1.38in Package list: 1 * Solar panel