Smart rear light diode 50 mm with reflex

Smart rear light with 1 diode.
Light with a constant light.
For mounting on a rack with 50 mm nut distance.
Lights a angle of 260 degrees.
In clear weather the light is visible from around 600 m.
Waterproof design.
Weight: 95 g.
Measures: Length: 10,8 cm x Width: 2,5 cm x height: 4,5 cm.
2 x AAA-batteries and nuts for mounting are included.
Using time: around 100 hours.