How long can these things withstand road vibration?

I've had a pair of these on a bike for about 1.5 years and they have held up great. They've have stood up to winter road salt and the bike being parked outside about half the time. I have had no problems with spokes, etc.

I have a Shimano hub and I can pretty much not tell if it is on or off unless I have slicks on and am riding on a very smooth road. The extra effort to generate the 3 Watts at 6 Volts is just about negligable.

Sure Lance Amstrong would notice it if he were to use it in a time trial... but I ride on a bike setup for full commuting that means I carry the following: fenders, rear rack, front head light, 2 rear lights, 3 water bottles (my drinks for the day), a can of pop, a sandwich, two pieces or fuit, a snack, a clean shirt and socks, a spare tire, tire patch kit, mini-tool kit, pump, rain gear, all between a handlebar bag and a set of rear pannier bags. You think I'd notice a little extra friction. During the winter I am running Nokia W106 winter tires as well. Those tires add some serious friction, but worth it!

I think the idea of having front and rear supplementary lights that will always operate is a great idea. If they indeed have added a capacitor to provide a "stand light" feature, that would be fantastic. No more batteries to deal with. I obviously like making my own light as I added a Shimano generator hub to my bike. I think adding these to every bike would be a HUGE improvement in over all safety. The vast majority of cyclists I see out from Dusk to Down (including most "serious cyclists) have no lights of any soft on their bikes and seeing them is pretty much based purely on the hope that a car's head lights will reflect enough light back to have them be seen. I could not be suprised if something this simple could help reduce night time cycling deaths by at least 25%. I bet 95% or more of all night time deaths are with cyclists that have no active lights on at the time of the collision.

Happy riding,
André

I personally think the idea of perman

<Bump again.>

Okay, I've had a set of these on my winter commuter for 4 months now. I love the concept, but:

• My winter bike has a Nexus 7-speed internal hub, and I had to get a special bracket from the company to mount it. The company didn't have one on their website for a while, but then they did send me one free of charge for my trouble, so that was nice.
• But attaching it onto the rear axle seems to make getting the (non-QR, chain tensioner-less) wheel to sit right in the dropouts even more finicky than usual, and more prone to getting knocked out of alignment by bumps.
• The front one was great when I first got it, and it even stayed on at least 5 minutes after I stopped, longer than they even claim on the website! But lately, it hardly stays on for 30 seconds even after my usual 25 minute ride, and I haven't moved it around on the wheel at all. Is it possible for the capacitor to get burned out? (This is the SL120 model with a capacitor to allow it to blink steady, and stay on for a few minutes after stopping.) But it still blinks at a steady rate while I'm riding, so it can't be totally dead.

Anyone else experience similar issues?

It'd be nice to have something like this with constant light. Maybe even decent front light output for dark riding. Add a capacitor and a stronger magnetic field to make it happen . Batteries are only a minor inconvenience though.

How so? As long as the forward-facing light is not red or blue, there should be no problem. At least not here in Ohio, where the law specifically allows bicycles to have lights that flash. See section 4511.56 "Signal Devices on Bicycles".

For anyone wondering, the listed price is equivalent to about $65.

I still have some of those lying around... in my old kit of "what lights work best... "

I have long since graduated to battery power and 32W of halogen lighting. I still have a backup C cell light and separate battery blinker.