This is a rare small-sized scale lighting part! Because it is small, it can be used with WPL without any discomfort. It will rotate and light up properly even if you only turn on the power, and if you can control it from Channel 3 onwards, you can change the lighting pattern by operating the radio control, which is a nice feature. There are three colors, so it can be used with a variety of working vehicles! lol If you have replaced the WPL mechanism with a general-purpose radio control set such as Turbo Racing, you can easily use it by simply inserting it into the empty connector on the receiver! For more details, please refer to the video.