This light bulb is not exactly a lighting fixture, it is also an entertainment tool. Connected to the computer via the USB interface, it automatically adjusts the brightness based on the speed of your typing. The faster you type, the brighter the light bulb will be. If you don't type it, it will not light up.
Controller,video processor,led display controller
Guangzhou Chengwen Photoelectric Technology co.,ltd , https://www.cwleddisplay.com