Take charge of the night! This Powerlux combination set features the USB rechargeable Headlux 100 front and Taillux 25 rear lights. Bi-directional tool-free mounting and removal is accomplished by a single silicone strap, making them suitable for mounting on or off the bike. Great for the urban commute, or as a secondary back up set in more rural areas. Simple to use and great value.Max 100 front, 25 rear lumens outputIPX6 water / dust rating63 x 27 x 25mmc.33 grams per unitCharging / low battery indicator3 modes per light