This unit is designed for easy install and will automaticaly flash when your key is removed from your vehicle.Can be installed in just a few minutes.Bright and Easy to Notice with up to an 18 year bulb life.Uses almost no power at all so it 't kill your battery,less than 30 milliamps of draw. These Can Be Used In Cars,Boats,RV's,Motorcycle's,Home Security or any other place where you can connect 9 to 14 volts to the device. Material: ABS + LED colour: Black+Red Package Contents: 2 x Anti-theft warning light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.