If anyone is interested, please consider purchasing. This was not made by an amateur. It was made by a certified automotive electrical technician, so you can use it with confidence. It's compatible with both 12V and 24V systems. Thank you for your consideration. We also have other items available, so please take a look. We have plenty in stock, and the price will vary depending on the quantity. We have other items for sale as well, so please take a look.