I have a small 100w solar setup with just a few items being powered by it. This works perfect for it. It keeps everything compact. It also made the project a TON easier/faster to set up. It even came with some ring terminals for the wires. On top of that, you can even mark the cover so you quickly know later what fuse goes with what. It also seems pretty sturdy and stuff. It definitely doesn’t seem like it will fall apart on me or anything like that. My only concern was with the clear plastic cover on the positive side. It snaps on. And it definitely stays on there good. However, because it is on there so good, every time I pop it off I expect it to crack or something. So far it has held up rather well… so maybe it is actually a high quality plastic. Which would be a definite bonus considering the low price. You are limited to 30A per circuit… 100A total per block. So, if you have a much bigger setup then you probably will need more than one of these or (more likely) some other type system.