Originally Posted by
canklecat
And there are dozens of bright LED flashlights on Amazon, ebay and elsewhere that are claimed to be weatherproof. The tricky bit is finding a mount that won't pop loose on rough roads, potholes or crossing railroad tracks, but some folks report good results with several mounts. The types that supposedly hold the flashlight barrel with just tension from a U-shaped block of rubber don't seem reliable, based on my observations in local group rides. I've seen those things pop loose several times on rough stuff. Get a strap that wraps around the flashlight barrel and handlebar for security.
To add on to this- My wife and I have used the Two Fish flashlight holders for years and they are very good! Eventually the plastic piece on the strap will break (after a lot of use) but you can find replacement velcro straps. The mounts are inexpensive, low profile, and secure. We have a Convoy S2 flashlight currently. We use the three modes setting- low, medium, and high. Plenty of light, completely waterproof, and takes 18650 rechargeables. All very compact and lightweight. I would highly recommend the Two Fish mount and high powered flashlight of your choice.
Bruce