Review on Premium 4-Wire Rectifier: Voltage Regulator Replacement for Mercury ATV, Boat Motor, GY6 Scooter, and More - Reliable Performance for JCL, NST, TAOTAO Mopeds by Damon Blazis

I assembled a homemade rectifier-regulator from pre-built circuits, but it was quite fragile. The Coleman BT200x minibike I use it on outputs 8-13VAC when running and this thing says its input voltage is 20-30VAC but even with the input low it outputs 13-14VDC. It's not "clean", my LEDs flicker a bit, but it's enough when the engine is revved up to power two 18-watt LED headlights. Will update the review when it dies but so far so good.