Adjustable steering lights flicker frequency, the use of advanced SMD chip technology Automatic short circuit and overload protection,Reverse polarity protection automatically,Allowing the bulb more stable job Flasher relay is speed adjustable.Use a flat head screw driver to adjust the knob at the bottom to set its flashing speed from 50c/m to 200c/m.For 3 frequency, faster twist counterclockwise, clockwise twist slow. It works for most motorcycles / bikes / scooters such as Compatible with Aprilia, B-M-W, Ducati, Hondda, Kawasaki, KTM, Suzuki, Yamaha and many other brands Installation tips:The foot position must be fit it when installing, if the function of the flasher wont able to achieve.If four lights are shine together after changing the flasher, you just need to unplug the turn indicator on the dashboard.B foot is input, L foot is output. Item Descriptions: -Adjustable steering lights flicker frequency, the use of advanced SMD chip technology -Automatic short circuit and overload protection,Reverse polarity protection automatically,Allowing the bulb more stable job -Flasher relay is speed adjustable.Use a flat head screw driver to adjust the knob at the bottom to set its flashing speed from 50c/m to 200c/m.For 3 frequency, faster twist counterclockwise, clockwise twist slow. -Easy Plug Play installation; Waterproof design in solid-state efficient unit with no excess heat issue. -It works for most motorcycles / bikes / scooters such as Compatible with Aprilia, B-M-W, Ducati, Hondda, Kawasaki, KTM, Suzuki, Yamaha and many other brands -Installation tips: The foot position must be fit it when installing, if the function of the flasher wont able to achieve. If four lights are shine together after changing the flasher, you just need to unplug the turn indicator on the dashboard. B foot is input, L foot is output. Package: Adjustable LED Flasher x 2 Item Specifications: Voltage:DC12V Flicker Frequency:50C/ m-200C/m Color:orange Size:35mm x 46mm x 25mm Material:ABS