Very effective back light.,
Verified Purchase(What is this?)
This review is from: RSP Astrum Super Bright Rear Light One Size, No Colour (Misc.)
This is a great light. Very bright and has a flashing option which I prefer. It has a clip facility so I have it attached to my ruck sack so in dark/bad weather I have two back lights, one on the bike and one on my bag. This is definitely a lot brighter than the back light I have on my bike.