Refun-R101-2pcs-of-RED-and-White-High-Intensity-LED-Aluminum-Alloy-Water-Resistant-Led-Front-and-Rear-Bicycle-

Features:
1)Include two Rear Safety Lights (Red Shell&Red Light and white Shell& white Light).
2)Visibility: Up to 200 Meters; Illumination Range: 240 Degrees.
3)Three Modes & One-Touch Switch Design: Steady, Flash, Off.
4)Aluminum Alloy Shell, Heat and Cold Resistant Silicon Band (-40°C - +220°C).
5)Easy to Install, Easy to Release: Can be Mounted on Handlebar, Seat riser, Fork, Backpack, Helmet and More.
6)Other Applications: Hiking Lighting, Camping Lighting, Emergency Lighting, Night Outdoor Activities and More.
7) Up To 150 Hours in Strobe & 50 Hours in Steady Mode.

Package Included:
1)2x Aircraft Grade Aluminum Rear LED Tail Lights (3 Modes: Fast Strobe, Slow Strobe, and Steady)
2) CR2032 Cell Batteries Included (Up To 150 Hours in Strobe & 50 Hours in Steady Mode)
3)2x Adjustable Silicone Quick Release Rear Mounting System

How do you open the light to replace the batteries?
Hold the bottom of the light case (the part connected to the strap) in one hand, with the other, twist the top of the light case (the part with the lens and 3 rings cut into it) and twist left to loosen, right to tighten (while holding the base still). The top will come off with the lens and case together, revealing the pair of stacked CR2032 batteries. Swap them out, being careful of polarity (neg. toward the base, pos. toward the lens for both batteries). Put the lens/case back on and twist right to tighten.


if you need headlight that are compatible with the taillight, please refer to the link below:
1)http://www.amazon.com/gp/product/B00MN7I4FQ
2)http://www.amazon.com/gp/product/B00QOPKPZ0