Your bog standard , jolly good rear battery light..fits 80mm centres holes. use adapter if you have 50mm centres,

To be seen 500 m Visual from the side Yes

Technical Information

Including Reflector Yes

On/Off switch Yes

Number of light modes 1

Automatic Light-Dark SensorNo

Battery Almost Empty IndicatorNo

Primary ColorRed

#Product Length45 mm

Product Width110 mm

Product Height20 mm