Coleman Crystalline 60-Watt Solar Panel uses high-effiency crystalline solar cells to produce maximum output for a variety of applications such as 12-volt battery charging. Easy installation on the included aluminum frame. Bypass diode minimizes power drop caused by shade. Weatherproof, shatterproof tempered-glass construction ensures a long life. Recommended for use with a charge controller (not included). Maximum output: 60 watts, 3.5 amps. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Solar Power.