ITEM NAME:4-Wire 2 Pin Wave Motorcycle Regulator Rectifier 12V DC Bike Quad Scoot TXJ.Rectifier scooter. Easy to install with 4 wires and 4 pins, just plug and play. Plug: 4 Wires with 4 Pins. We'd like to settle any problem in a friendly manner. We want to make sure you are happy with our item.