Its a great led kit! easy to mount and use and has really bright LED's. But there is a little problem with it. It may cause glitching if you use te blink modes and have a 27 or 40 mhz sender set. If you have a spektrum it won't be a problem, But with a normal mhz sender your car could get out of control. That's why it doesn't get the full 5 stars.