Originally Posted by 640 Armageddon
a friend of mine bought this bicycle light from here
is there any difference from the one I bought from ADVmonster?
... As far as out eyes can tell the light output seems to be the same when we are doing night rides wuth our bicycles ...
Looks very similar to the ADVmonster product. The major difference is ours is WATERPROOF. After testing prototypes in the rain and water, they would stop working so I worked with the manufacturer to develop an improved gasket/seal.