Specification:
Color: white, Red
3 mode: Always, flsah, fast flash
Battery by: 3V button battery (Included)

Features:
Waterproof, durable, steady, made of silicone.
It works between 40 degrees below zero and 220 degrees.
Always mode lasts 35 hours, flash mode lasts 160 hours.
Easy to install or remove within 3 second.
Can be installed on handles, seat cushion standpipe, backpack, helmet ect.
Excelent company for hangging out at night , hiking, cycling.

Package Includes:
1 x White Bicycle Light
1 x Red Bicycle Light