RL317R 0.5W

Powerful ½ Watt LED plus 2 High-powered LEDs create both steady and Superflash mode for 220 degrees of visibility
Eye-catching technology maximizes your visibility to other road users
Compact vertical design and waterproof
Includes 2 x AAA batteries and two mounting brackets and clip for multiple mounting options
Run times: 55 hrs (steady) and up to 190 hrs (Superflash)
Weight: 70 grams