Features:

When braking first fast-blinking 4 times and then slow-blinking 4 times, finally stay in the original light, which warms the drivers behind you when you stop with blinking light.
Alert the vehicles behind you to stop to prevent rear-end accident when driving blocked road.
Wide voltage 6-30V, suitable for all types of cars' brake lights with 6V~30V, it also fits for trucks, motorcycles, electric bicycles, tanks and other LED lights.
Input: red wire for positive, black wire for negative; Output: red wire for positive, black wire for negative.
Made of eco-friendly and durable material. Double side tape is included for easier install.
Complete sealed technology make it waterproof, short circuit protection. Mini and compact design, easy to install and space-saving.

Specifications:

Type: Flash Strobe Controller
Material: Plastic
Quantity: 2pcs
Item Color: Black
Input: DC6V-30V
Output: DC6V-30V
Item Size: 5*2.7*1.3cm / 2*1.1*0.5 in (L*W*H)

Package List:

2PCS Flash Strobe Controller
2PCS Double Side Tape