This Game Boy Color and Pocket Regulator (5V) is a replacement power board regulator which supplies a stable 5V up to 1A. This upgrade will be able to support all of the power-hungry mods such as IPS & TFT display mods, flash carts and amplifiers.
This regulator only supports most IPS LCD kits and does not provide the voltages required for the original (OEM) and FunnyPlaying LCD kits. In order to use this regulator with original (OEM) or FunnyPlaying kits, you will need to leave on the original power board/regulator. Then for GBC you will need to cut pin 7 on the original power regulator. For GBP, you will need to cut pin 6 on the original power regulator.
If you are using an aftermarket LCD kit (such as one by Hispeedido and FunnyPlaying), or original LCD kit, in order to use the contrast wheel brightness function, you will just leave the old regulator fully in place and solder the CleanPower over top as in the method above. If your regulator is completely non-functional, you may not then have use of the contrast wheel with this regulator.