The Denso ballasts are a great choice to use for retrofitting headlights since they are really robust and have a great warm up time but the only bad thing about them is that they are made for specific headlights with mounting tabs so it is hard to mount them on anything else. These are different variations of the Denso mount I made so feel free to use them. They fit very snug and when printed on my Bambu P1S with Bambu ABS at 100%, they fit like they were made for it. I usually put RTV or tape where the top is so that this keeps the ballast from the elements.

There are two variations of the top mount and side mounts.
Top and bottom mount

• Fully enclosed; this is very hard to fit but it will with some convincing.
• Partially enclosed; the side with the angle is open so that it is easier to fit.

Side mount

• Frame only; this is the first design and is more or less open but gets the job done.
• Partially enclosed; for anyone who wants to protect it more from the elements.

All screw holes are 7mm and made for M6 bolts.