Here is our product menu . LED Bulbs/Misc includes all plug and play replacement bulbs as well as light sockets,universal LED boards ,switches, etc. Our Power and Control boards include any type of regulation/pwm or effect boards to control your LED's . Custom order gives you information on how to order a special custom retrofit thats not listed on our site . Pre-designed retrofits include retrofits we do and or popular . These are listed by vehicle manufacturer .