1.This product is waterproof, shockproof, plug and play.2.Flash frequency: 80 beats / min.3.There will be a beep when turning.Features:The DOP-3X flasher relay is made of specie IC.Suitable for car/motorcycle halogen/LED lamp.When you use LED turn signal indicator for your car, motorcycle or other autos, the indicator may strobe or not work. Our product can avoid these problems.Shockproof and water-resistant.Use standard plug foot.Plug and play. Easy to install.Red lead is connected to positive pole of power supply. Green lead is connected to positive pole of turn signal indicator. Black lead is connected to negative pole of power supply.