Originally Posted by
noglider
My Cygolite Hypershot 350 is rated at 350 lumens. I've had people complain it's too bright. I haven't figured out how to dim it. I'm in NYC, a very dense place, i.e. no country roads, so it is brighter than I need.
I haven't figured out how long the battery lasts but it seems to be more than three hours.
Holding the second button on will change the frequency of flash mode or brightness of steady modes.
It's hard to guess how long the battery will last in between high and low. I think when it looks half as bright it's only using one quarter the power.
The flash modes are still nice and bright at the lowest speed and 100 hours is a decent amount of time. Recharge weekly on tour is fine.
There's nothing revolutionary that's changes red led technology over the last 20 years so the super flash is about as good as anything if running off disposable batteries.
Avoid the brake light function..my cat eye light is very sensitive to deceleration and it really runs the battery down.