Pin Round Connector/ Type: AC Fired CDIFit GY6 50cc 125cc 150cc ATV Taotao Roketa Sunl Lance Scooter Moped Go Kart 4 Wheeler Quad BikesNOT have a rev limiter, Easy to install, small enough to strap where its supposed to goThis is AC CDI, Which is smaller than the DC CDI While the appearance is just same only size differentSpecificationsTypeAC Fired CDIPins6 Pins Male PlugMaterial TypePlastic and MetalModelGY6 50cc 125cc 150cc ATV Difference of AC CDI & DC CDIAC CDI: The CDI Obtains it voltage solely form the current produced by the stator and is one of the most widely used basic in small enginesAC CDI : on the two plug part of the unit will always have 2 wire generally a black/red=stator power a white/black = engine killAC CDI ??scooter engine will run without a battery or on a dead battery DC CDI: The DC CDI module is powered by the battery so an additional DC/AC inverter circuit is needed in the module to step up the voltage from 12VDC to a range 400-600VDCDC CDI: Is a lager unit du