Blackburn Dayblazer 400 Front + Click USB Rear Light Set Looking for a light set that is simple, affordable and bright? The Dayblazer 400 and Click USB Light Set is just the ticket. The Dayblazer 400 features our BLITZ daytime running mode, versatile mounting options, and excellent side visibility. The Click USB rear light packs 20 lumens of light in a tiny package. Specs: Recharge TypeMicro-USB rechargeable - Charges via any standard USB port (charging cable included) BrightnessUp to 400 lumens front, 20 lumens rear Battery TypeLithium Polymer Recharge Time3-hour recharge Mounting OptionsThe versatile silicone swivel mount allows the light to be adjusted to center on the road. Fits handlebars 22-35mm and can be used to strap to some helmets. (front)/Universal Mount - Action-camera-style mount fits most helmets and handlebars 22-35mm in diameter (rear) Product Weight81 grams (front 59g, rear 22g) Run TimeBlitz mode (front): 1 hour at 400 lumens Low mode (front): 1.5 hours at 200 lumens Pulse mode (front): 6 hours at 200 lumens Strobe mode (front): 10 hours at 200 lumens High mode (rear): 1.5 hours at 20 lumens Strobe mode (rear): 3 hours at 20 lumens Water ResistanceIP-67 (front) and 65 (rear) - Ingress protection rating, or "IP Rating," is a techy way to describe the level of water- and dust-proofness of a product. Both lights are totally protected against dust/grit. The front light meets the IP-67 Standard, which means that it is fully protected against the effects of immersion between 15cm and 1 meter for 30 minutes. The rear light meets the IP-65 Standard, which means it is protected against low-pressure water jets from any direction.