If anyone is interested, please feel free to contact me. This is not made by an amateur. It is made by a certified automotive electrical technician, so you can use it with confidence. It works with both 12V and 24V systems. It can be used for side markers, etc. Thank you for your interest. I can fulfill custom orders based on customer requests. I have a large inventory. I have other items for sale as well, so please take a look.