Blackburn 2.0 Flea Front and Rear USB Combo Pack
Micro size rechargeable Li-Ion powered tail light. Indicator LED shows battery capacity and charging. Uses four super-bright Nichia LEDs.
I've tried many different bike safety lights and this Blackburn Flea set (with USB charger) come out on top. The battery charges lasts a long time, especially when light is set to flash mode. Charging at work is easy (if you're at a computer all day), and these are durable. I've never had issues getting these completely soaked in the rain and they've lasted years of daily commuting. Although they're not necessarily bright enough to see with, they're definitely bright enough to get noticed with!
these little lights are named right, the flea. with the combo pack the front and back lights are provided and are a great combo to have. these things weigh nothing at all, and the charge quickly. they are a great for commuting or when a light weight light is needed for a road ride. they do charge quickly for a 5 hour ride. the bonus is that they have adjustable Velcro straps to place them around any sized bar or tube.