*The one-touch LED series 2 is a specially designed LED lighting system for model embedding.You can add functions such as power supply, switch, branch, and program blinking by consolidating the necessary functions on a small thumb-sized board and connecting the necessary boards.Since it is based on USB power supply, it is suitable for long-term use in exhibitions and diorama applications.*4-branch board Flashing for old red light (for BTBUSB):For conventional red lights. It is used for the red light of the vehicle before switching to the boomerang type. The way the lamp shines is also programmed into a lighting method that imitates a light bulb.*Example use:https://youtu.be/1Y03Dmo6bk8