Knog Blinder 4 Dots USB Rechargeable Taillight: Red LED~ Silver Body

Packed with four very bright LED bulbs, the Knog Blinder 4 can be seen for over 800 meters.
Water resistant, durable silicone body easily fits 22 - 35mm seatposts and handlebars
To turn the light on and off, it requires a one second press-and-hold
Optimized optics direct the light and focuses the ray for a brighter and more powerful beam pattern
USB-rechargeable with a 5-hour charge time
Run time on steady mode is about three hours
Run time on flash mode is about 50 hours
Easy to use tactile buttons allow for quick adjustments on the fly