Take the lane with confidence: you’re using the strongest tail light we’ve ever made. With focused LEDs 270 degrees of visibility and blitz daytime running mode our Dayblazer tail lights can be mounted to just about anything you can think of from round or aero seat-posts to seat stays rear racks and backpacks. Be Seen - Day and NightBlitz Mode - Daytime Running Mode- Whether you are in the darkest alley or on the brightest street BLITZ mode is meant to get you seen on your bike day or night.TIR Lens - Keeps the light pointed behind you even when the light is mounted flush with a seat post or seat stay.Versatile Mounting System - Mounts to round seat posts aero posts seat stays or to loops on bags/clothes.IP-67 Submersible - Ingress protection rating or ‘IP Rating’ is a techy way to describe the level of water and dust proofness of a product. This light meets the IP-67 Standard which means is totally protected against dust/grit and is fully protected against the effects of immersion up to 1 meter for 30 minutes. SPECS   Recharge Type Micro-USB rechargeable — Charges via any standard USB port charging cable included Brightness Up to 125 lumens Battery Type Lithium Ion Country of Origin China Recharge Time 3-hour recharge Mounting Options Versatile mounting system - Round seat posts aero posts seat stays or loops on bags/clothes with the built-in wire clip are all fair game for mounting the DAYBLAZER rear light thanks to its unique and reconfigurable bracket interface No tools required Product Weight 78 grams Run Time High mode: 1.6 hours at 120 lumens Low mode: 3 hours at 50 lumens High flash/Strobe mode: 3 hours at 125 lumens Low flash/Strobe mode: 6 hours at 65 lumens Water Resistance IP-67 submersible - Ingress protection rating or 'IP Rating' is a techy way to describe the level of water- and dust-proofness of a product. This light meets the IP-67 Standard which means it is totally protected against dust/grit and fully protected against the effects of immersion between 15cm and 1 meter for 30 minutes. Manuals bbn-dayblazer-125-rear-light-manual.pdf