The One Shot concentrated solar panel cleaner is ammonia free, streak free, non-smearing and quick drying with no odor, no VOC's, environmentally and user friendly. It cleans, protects, and improves the efficiency of your solar panels in one step. 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. The concentrate formula includes an automatic hose-end mixing sprayer which mixes 4 oz per gallon. Makes a total of 8 gallons of solar panel cleaner.