1 Shot Solar Panel Cleaner 1Gal, by Bare ground is a powerful cleaner that cuts through anything Mother Nature can dish out. It cuts through the toughest dirt and grime that can coat your solar panels greatly reducing their effectiveness and efficiency reducing your return on investment of the solar panels in one easy step. One Shot Solar Panel Cleaner is ammonia free, streak free, non-smearing and quick drying with no odor, no VOCs, environmentally and user friendly. The special active ingredient formula cleans solar glass and reduces the surface tension which bonds dirt and dust. Panels will stay cleaner longer and maintain higher levels of efficiency, maximizing your investment. Pre-mixed and ready to use. 1 Gal.