Olight SEEMEE 30 Rechargeable LED Bike Tail Light

You'll be visible, and therefore safer, on the road or the trail with the Olight SEEMEE 30 Rechargeable Bike Tail Light. Equipped with an infrared sensor, the SEEMEE automatically selects the best brightness level for ambient conditions, though you can also select outputs of 7, 14, or 30 lumens of red light. Runtime ranges from two hours on high to nine-and-a-half hours on low, and up to 40 hours for the flash. Charging is a breeze with the included micro-USB cable. The light installs on your seat post or bar by means of an adjustable silicone O-ring.