Just converted all the 12v lights in the RV to 48 LED 'light boards', what a difference in lighting and the power drop is negligable, I needed 23 seperate LED's and they did not come with the correct adaptor so I had to modify the bulbs and solder the connectors to the filaments to get them working, next step is the HID conversion on the headlights, I'm doing this properley with a projector conversion in a light with a clear lens.