Just bought the Bullfrog for my son's bike. For the money, I ma VERY dissapointed in it's output. OK, so it has a bunch of flash patterns which, for a headlight are just plain annoying. Why would you need more than one blink pattern? As a motorist, when I see blinking headlights it is annoying as hell. As a be-seen light it's not bad but you would be hard pressed to use it to *see* your way home with.
For the money, the Planet Bike Blaze or a similarly-priced Cateye would do much better.
So, for that amount of money, what do you gain from the Bullfrog? OK, there's that silicone-y housing/band thing but really, I don't think it's worth that much more.
I'd take it back to the LBS I bought it from but since I pitched the packaging, I'm out of luck. But that is only my fault.
Sorry, just felt like venting a bit, and warning some people.