[English Subtile] To make the world in camera more real, start from a high-color-rendering light 

Difficulty: 6/10 Budget: ￥200
DIY a multifunctional fill-in light with color-rendering COB bulbs and high-power RGB.
Shed the white (yellow) light of 3000K-5600K CCT and colorful light with full hues.
Manufacture the penta-constant current driving board with ESP32 as the master control to expand wireless operation.