I installed a high mount brake light for a chevy van in my back window and it made a lot of difference to the braking but I wanted more.

So I installed two more brake lights in the sockets closest to the license plate and that helped. But I still wanted more. The lights seemed weak.

I have sold the MB 123 since but just before I sold it, I experimented with LED lights and if you buy the red with as many LEDs on it that you can fit into the housing, you will have bright brake lights, for sure. You may have to do some adapting to get them inside the housing. But they do last a long time and they are very bright. Do not buy the white LEDs as they are not very bright through a red lense. But if you buy the red, they really stand out and people take notice of them.