Serfas Thunderbolt USB Taillight, Red
Price 44.99 - 45.00 USD
Produces 35 lumens of pure red light * USB rechargeable light, that fully charges in 3.5 hours * Features 30-mini LED strip * Features a water resistant silicone body and unique mounting options * Modes: high beam, low beam and two flash modes Run times: 1.75 hours (high beam); 3 hours (low beam); 7 hours (high blink); 9.5 hours (low blink)