My 550i GT has 2 fuse blocks and one behind the glove box is very hard to come by. Because some things, such as B. internal DC power supplies, can be due to 1 out of 4 fuses, they are difficult to test. They light up and let me see which fuse is blown so all I have to do is pull it out. This range is good but not suitable for my car. I could only use a few sizes. It was a proof of concept and then I found a supplier to get more sizes I needed.