Review on MIHAZ F1-Style Flashing Blinker LED Trailer Lights: Waterproof Rear Tail Lamp With 15 LEDs For Brake, Stop, Strobe, And Pilot Lighting - Ideal For Cars, SUVs, And Motorcycles (Red) by Dezz Watson

It feels like it was rushed out the door without any of the normal items. Only two screws not 4 as described. the mounting bracket may actually be borrowed from something else and applied to this product. Quality is not bad, it's just not polished. If you want a brake light to flash to get the attention of drivers behind you, I would continue shopping to see what else is out there. If there is nothing else you like and you are handy with cars and wiring, then this might be a cost-effective buy for you. Remember there are no instructions.