Super easy to install, just plug and play,took like 5-10 min. 12v DC Fit for Motorcycle, Softail, Roadster, Sportster, Touring and TriGlide etc...fit 2 inch signal light 1157 bullet Motorcycle. It can also be used for some older models not listed and if have flashing It need with load resistor. Features of 48 white LEDs for a bright -white driving light;48 amber LEDs for an exceptionally bright amber turn signal.Fit for 2006 HD FXDI, 2009 FXD,2011 road glide,2014 Electra Glide Ultra Classic,2017 iron,2018 street glide,2019 street glide special,2019 ultra classic etc... The LED Front Rear Light Upgrade style is 30% Brighter than normal tail light for Motorcycle. Package Include - 2pcs 2" Bullet style front turn signals light(1157- 50mm diameter).