Busch + Müller IXXI Rear Light

Battery-powered rear light. High output LED.
Very bright, large beam angle. Fits all seat posts. 53 mm tall, 31 mm wide. Weight (incl. battery and mount): 35 g.  

•Integrated, rechargeable lithium-ion battery
•Shines for 15 hours
•Charged via micro USB port
•With capacity indicator
•Approved by German road traffic regulations
•LED-battery-powered rear light
•integrated, rechargeable lithium-ion battery
•with USB-charging cable