Nirve Tiki Ornament Bike Light A groovy, green glow from 4 LED's in 3 light modes: Steady, Flash, Swirl-Strobe and Powered by 2 ''AAA'' batteries (included) Designed to mount on front or rear fenders. Requires user to drill simple mounting holes in fender Use your imagination for other creative mounting positions This is a decorative ornament and is not an approved safety light Consult your local laws/ordinances for bicycle lighting requirements for night riding on public roads