Neewer LED panel modification Homemade Arduino Nano based driver for the Neewer BP300 LED panel. Features Single controller to sync two LED panels Color balance between cool and warm Brightness balance between two LED panels Total brightness adjustment Implementation Basically PWM followed by a logic-level MOSFET, e.g. IRLZ44N Utilizing timers 1 and 2 of the ATmega328 chip to generate 2x2 PWM signals up to ~60kHz common frequency and individual duty cycles See also The MOSFET as Switch Details PSU LEICKE ULL 5V 8A or 6A Connector 5.5x2.5mm (+) Actually 5.5V not 5.0V output voltage Audible noise below 7W load Meanwell GST60A05-P1J 5V 6A or medical as possible alternative MCU Arduino Nano compatible clone Fittingly VIN between 5V and 12V Otherwise Pololu S7V8F5 Wiring Extension cable LiYY 3x0.34mm² Cable connector M13 5A Label Native wire Extension wire Connector pin W- Yellow Green 1 C- Black White 2 + (5V) Red Brown 3 LED indicators Color Resistor G 470 R 2k B 10k Pots 3x10k Fuses 2x3A slow or fast Housing TEKO 362 or similar How it looks like