Product details:

Truly a retina-melting powerhouse of a light, the Knog Blinder Road R70 Tail Light more than lives up to its name. When you're traveling a dark, lonely road, all 70 lumens of red LED light will be your best friend. Approaching motorists will see the star-like Blinder from over 1000 meters (3300 feet) away. If your journeying takes you on a more social excursion, Peloton mode tones the Blinder's light levels down to a friendly output; just enough to let your pace line buddies know you're still on the ride without sending them to the optometrist for replacement eyeballs the next day. Mountable on all common seatpost sizes, including some aero posts depending on their profile, the Blinder is able to go with you wherever you wish. An integrated USB recharging plug makes powering up a simple affair. With its unobtrusive size and obnoxious output, Knog's Blinder Road R70 is set to provide all you need in a road tail light.