We have a 20 solar panels on our roof and during our pollen season they can get pretty dirty with the sticky pollen in addition to just the daily dirt and dust from the environment. I've cleaned our solar panels a few times over the course of 3 years and have always used a little bit of dish soap and plenty of water. This works fine to get the solar panels clean but it does take a few rounds of washing with solution and then rinsing. I was a little skeptical when I came across this product but this thing actually works. First off, a little does go a long way. I used a capful for a little over a gallon of clean water and that was plenty enough to clean our panels. I use a fiber scrubber soaked in the solution then rinse it clean. Unless there's a really dirty panel, this solution manages to release the dirt and pollen usually in one to two passes. Then I rinse it clean, which also tends to rinse streak-free using this solution. No idea how it works but surprised it works as well as it does!

Large interior space, solid shell, good waterproof effect

I thought this was a 50 W trickle battery charger for my van. It’s only 30 W. It is quite large. I got it hooked up trickle charging my van right now.

Picked this up for a 7.5Kw generator that I use for power outages and camping. Assembly was easy and intuitive and came with superglue to attach the fittings to the tubes. I like the fact it has windows to see what's hooked up and separate openings to allow for ventilation. Access to the gas tank on top is a must and this cover provides easy access. Fits my generator nicely while providing protection from the elements while also allowing easy access to fuel and connections.
Pricing on this cover is literally middle of the road. There are covers that look identical to this at almost half the price while others are double the price. I can't say how well this holds up to the weather as I haven't had time to put it through any punishment yet, but I'll update the review if I have any problems. I don't expect any though as it appears to be made with good materials and quality craftsmanship.