The new Thunderbolt silicon USB rechargeable bike light is set to arrive later this summer from Serfas, and will be available in seven stylish colors. The water resistant headlight (above) promises to provide 90 lumens of light from a strip of 15 micro LEDs, with a run time ranging from 1.5 hours on high beam to 6.5 on low, along with 3.5 hours on blink and a full 9 hours on low blink. Continue reading Serfas Thunderbolt Offers Light Like a Bolt of Lightning