Sunforces 55-Watt Solar Backup Kit uses solar panels and a 200-watt power inverter to run both 12-volt and 110-volt appliances and keep you connected in remote places. Easy, toolless installation on the included metal frame. Integrated blocking diode prevents battery discharge at night, plus an amorphous design allows panels to charge in all daylight conditions, including overcast days. Weatherproof, shatterproof tempered-glass construction ensures a long life. Easily portable for transport to your favorite getaway. Temperature range: -40F to 176F. Output: 55 watts, 3.7 amps. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Solar Power.