This is a custom heavy duty 3-Pin electronic LED flashers, Fix turn signal/hazard warn hyper flash. They are a MUST if you upgrad LED lights want to STOP the fast flashing or Hyper-Flashing . JUST PLUG and hooked the flasher wire to a known good ground or negative battery post . Could be used for most 12V application that requires a three prong(X,L,P) flasher. This Flasher is a Good Substitute for the Motors/Automotive(Bike/Motorcycle/Golf/Car/SUV/Van/Truck/Motorhome/Vintage etc.), Especially Suit for Old-Style Model(for The Old Car/Motors LED Conversion).