Features Brand New and High Quality Mini size and waterproof design (IP65) Easy installation Can better alert the vehicles behind you to prevent rear-end collision Compatible with all types of brake lights including LED clusters, such as cars, motorcycles, tanks, armored vehicles, electric bicycles and other LED lights Specifications: Work voltage: 12V Size: approx 4.8*2.7*1.6CM Total Length (include wiring length): approx 30 cm Expertise: When each brake, the high brake light will flash four times in a row, slow flash four times and then turn long. Improve the warning effect of rear vehicles and try to avoid rear-end accidents. Improve traffic safety! When driving at night, especially traffic jams, the regular brakes cause people to have visual fatigue, so this product can well solve this shortcoming. The King of Boutique! ! ! Connection mode: Direct series connection. First connect the LED light and then connect the power supply. Otherwise no flash effect! ! Package Including: 1 X Auto Car 12V GS-100A LED Brake Light Strobe Flash Controller