I hope you buy everything because you like it, not because it is cheap. If you care about quality, respect the price. If what you want is cheap, accept the quality. Specification: 100A LED flash strobe controller module for brake light Universal fit for any 12V cars, motorcycle, bike, etc Convert the brake lamp flashing pattern to alert vehicles behind you to prevent accident The flashing pattern is strobe 3 times, then flash 3 times and then constantly lighting up Durable and waterproof design Easy installation Just simply tap this controller module box in-between the brake light and the wiring harness and it's all done. Work voltage: 12V Module size: approx. 1.95 "x 1.05" x 0.55" Wiring length: approx 5" each side Package incluede: 1pc x Brake Light Flash Controller Modules Note: Due to light and screen difference, the item's color may be slightly different from the pictures. Please allow 1-5mm deviation due to manual measurement. I hope you buy everything because you like it, not because it is cheap. If you care about quality, respect the price. If what you want is cheap, accept the quality. Specification: 100A LED flash strobe controller module for brake light Universal fit for any 12V cars, motorcycle, bike, etc Convert the brake lamp flashing pattern to alert vehicles behind you to prevent accident The flashing pattern is strobe 3 times, then flash 3 times and then constantly lighting up Durable and waterproof design Easy installation Just simply tap this controller module box in-between the brake light and the wiring harness and it's all done. Work voltage: 12V Module size: approx. 1.95 "x 1.05" x 0.55" Wiring length: approx 5" each side Package incluede: 1pc x Brake Light Flash Controller Modules Note: Due to light and screen difference, the item's color may be slightly different from the pictures. Please allow 1-5mm deviation due to manual measurement.