ITEM NAME:Strobe Flash Controller Flasher Module for Car LED Brake Stop Tail Light CZH Descriptio n Material: ABS Colour: Black Size: 46*28*13mm Working voltage: 12V-24V Power: 24W Product list: Strobe controller *1, cable bundle *1, Paster *1 Using method: 1. Connect cable with strobe controller. In order to prevent poor contact, please connect the cable carefully. 2. About the red & black cable (about 1.2m length): connect the red cable with positive of power, and black cable with negative . 3. About black white & black cable (about 3m length), 2 pcs, black white cable connect with light positive , and black cable with negative . 4. Turn on the input power, press strobe controller MODE button for 2 to 3 seconds to launch this controller. Short press MODE button to change flash modes. 5. Avoid water and solarization With fixed sticker for the strobe controller and LED indicator on the controller We offer you what you need! Strobe-Flash-Controller-Flasher-Module-for-Car-LED-Brake-Stop-Tail-Light-12V-24V.We'd like to settle any problem in a friendly manner. Short press MODE button to change flash modes. Colour: Black. About black white & black cable (about 3m length), 2 pcs, black white cable connect with light positive, and black cable with negative.