SB1v2 Front & Rear LED Bike Light Set 900 Lumen 19 Hours MAX Rechargeable Battery Bicycle & Head Mount &#x2714; STAY SAFE DAY OR NIGHT: High Power Front & Rear Light Set. 900 Lumen Headlight + 2x Rear Taillight + Sealed Rechargeable Battery Pack (19 hr Max Run-Time) &#x2714; SAVE MONEY IN THE LONG RUN: Certified Reliable Battery Pack. Beware of Cheaper Battery That Are Prone To Defects. Those cheaper battery packs are not able to hold its charge after several uses, and it's only a matter of time before its useless; &#x2714; SAVE TIME WITH EASE: No Tools Required & Mounts On In Seconds. Head Light fits any handle bar size  rear taillight fits any seat post or rear frame  SEALED battery straps on any sized frame with 9 sizes for a guaranteed secure fit  adjustable helmet mount included &#x2714; NEVER WORRY ABOUT DAMAGE: Every Component Is Water & Shock Proof. Stay In The Rain As Long As You Want! Headlight Waterproof grade IP65 - Battery Pack Waterproof grade IPX5 - Rear Light Waterproof grade IP7 &#x2714; WIN - WIN SITUATION: 100% Limited Lifetime Warranty For 2 Year Free Parts & Labor - 100% 60 Day Free Return No Question Asked Money Back Satisfaction Guarantee