Bookman rear bike light Block Led USB

Block Light is a solid, compact and rechargeable bike light. It is equipped with the latest LEDs and a Lithium Ion battery that make it super bright, but with a long battery life. 4 different lighting modes. Brightness 100% fixed 18Lm: 1.5 hours of autonomy. Brightness 100% flashing 18Lm: 3 hours of autonomy. Brightness 25% fixed 5Lm: 5 hours of autonomy. Brightness 25% flashing 5Lm: 25 hours of autonomy. Charging time: 2 hours. Included: USB cable. Measures: 35x23x14 mm.