Light up your night journey! The PowerLux USB Combo includes a HeadLux USB 100 lumen front light and a TailLux USB 25 lumen rear safety light. Both lights have two super bright LEDs and conveniently plug directly into the USB port for charging without the need for a jumper cable. Of course, it is also quick and easy to install without tools using one silicone strip. universal front light for helmet or handlebar. The HeadLux 100 USB light features convenient cable-free charging with direct connection to the USB port. Two bright 0.5 W white LEDs provide up to 100 lumens with three light modes. Tool-free assembly and disassembly is secured with a single silicone strip. IPX6 water resistance ensures perfect protection against rain. Maximum luminous flux: 100 Lumen Light source: 2x white high-luminous LED Battery: 3.7V 500mAh Lithium Ion (integrated) Lighting modes: 1.5 hours. (high luminance) / 3.3 hrs. (medium luminance) / 40 hrs. (blinking) Charging: Micro USB / 2 hours Input: 5V 500mA Material: engineering grade polymer Mounting: silicone strap Waterproof: IPX 6 Additional features: low battery signal Dimensions: 6.9 x 4.3 x 2.2 cm Weight: 32 g Rear bike light with two high-brightness LEDs and USB charging directly via the built-in connector. Easily attached with a rubber strap to your saddlebag, Topeak panniers or bike helmet. You'll be able to see up to 2 km with this light. Maximum luminous flux: 25 Lumen Light source: 2 super bright red LED's Battery: 3.7V 320mAh Lithium Ion (integrated) Lighting modes: 3 hr (High) / 30 hr (Low) / 40 hr (Blinking) Charging: USB port / 2 hrs. Input: 5V 500mA Light material: engineering grade polymer Fixing: rubber belt, on seatpost (ø25.4 - ø34.9mm), Topeak panniers, cycling helmet Waterproof: IPX 6 Dimensions: 6.3 x 2.7 x 2.5 cm Weight: 30 g