As I said above, I had a Serfas TL60 that failed in the rain. Serfas did replace it. I don't know if the replacement would have fared better, as I lost it about a week later because the fabric clip that they ship with it was so horrible that the only viable explanation is that they INTEND for it to be so bad that you lose the light and have to keep buying new ones.

The Axiom Pulse 60 is pretty much an exact clone of the TL60. It doesn't have a good fabric strap either, but at least it's half the money ($30)