I just got a pair of these today and could not believe the huge difference between them and the Tirefly lights I was previously using. They are much, MUCH brighter and best of all they don't turn off by themselves. They may not be as fancy as the monkeylight or other such higher end varieties, but they have a great glow that really shows up in the dark and yields much better side visibility than I have ever had.

Of course, on the SpokeLit's maiden ride home I passed a guy on my last stretch who had no reflectors and no lights of any kind. It is pitch black this time of the year. I concluded he was just plain crazy.