301929 1 Novel design and beautiful appearance 2 Wind driven power， no need for cables for easy installation ( with double faced adhesive tape ) 3 Built-in super brightness LED 4 100% waterproof， more safer and practical Material: plastic External color: silver Light color: red + blue Dimension: 8 x 3 x 4.2 cm Application without power supply and wiring. Light up by wind power while vehicle is in motion. Applied to car， motorcycle， bike and scooter. Comes with adhesive on the back， just peel and stick. Please use detergent to clean the surface of the target place before stick it on. 1 x LED light bulb In blister package