Glass Gleam Solar - Solar Panel Cleaner - Highly Concentrated - 1 Gallon Makes 500 Gallons of RTU Product (1 Quart)

This product worked for me. I've had my panels for over 3 years and never cleaned them so I had to pass over each of the panels two or three times but they ended up super clean and working great! Great value. Would recommend.

I used this item to clean my solar panels and it seemed to work very well. My panels are clean and I could see a very good increase in the power output from my solar panels.

Had solar panels for 4 years without ever cleaning them. Recently noticed my production was low, even on cloudless days. Bought this solution and a motorized solar panel cleaning brush on a 20’ pole and it worked great! 35% increase in production form the day prior with the same weather. Will start doing this annually. I mixed the solution into a car wash foam gun and it worked great.

Did a test on one panel and it seemed to work ok. I pour some into the foam bottle on our pressure washer and applied it to one panel. I let it soak about 5-mins and then rinse and it seemed to work. Our panels were not that dirty as I had just cleaned them a month before so time will tell. I'm planning to wash them again in early July and will update my review as needed.

Works great

So, I use a 2 gallon (garden type) pump up sprayer to apply this product to my solar panels, its super concentrated, 15ml to two gallons of water, I got my 15ml measurement from a cough syrup cup. I just spray it onto my panels, leave it for 2 or 3 minutes, then rinse it off with a water nose……my panels are on the ground. It’s easy to use, more stubborn spots might need to be brushed off….this quart of cleaner, might outlast my solar panels…lol

This did an amazing job on our solar panels. You use very little so it will last forever. Cost was very low.

The product quality seems fine and it’s easy to mix and apply, which makes it convenient to use. It offers good value for money since the concentrate lasts a long time, but the cleaning power is a bit underwhelming on tougher buildup. It works for light dirt and maintenance cleaning, though durability and overall effectiveness don’t fully match the claims. Okay for routine use, just don’t expect dramatic results.