Maybe it's me but I looked on their website but can't seem to find the above item.
Anyone have an idea?
Thanks!

There are several on this page
https://www.bumm.de/en/products/akku-scheinwerfer.html

Or did you mean the Luxos U for charging devices from a dynohub?
https://www.bumm.de/en/products/dyna...arent/179.html

But I think the Luxos B does not offer that, so be careful which you order if you order one.

I have the Ixon Core which charges from USB. The battery life is very impressive, and so is the quality of the beam. The build quality is fantastic, too. I think I tested it for running while charging, and if I remember right, you can run the light while charging it. Not all lights allow this. Overall, it's a fantastic light.

I had a tourist bike, to send back , in a box, she had a charging cable
running to the rear rack,

Both a dynamo powered non flashing, and a USB recharged blinking tail light..

was nicely done..




....

To clarify I am looking for the headlight that has a usb port that is Dyno hub poweree. But doing a little research it appears that it may be a better solution to go with a separate unit like The Plug.

And Schmidt eDelux headlight is more rugged, front, glass not plastic
aluminum case , mounting tab & Co Ax cable

I'm pretty sure this is the one you want. Dynamo powered headlight with buffer battery and usb charging all built in to the headlight. Just run the switch up to your stem & plug in your phone or whatever. I have one on my tandem to keep our Garmins charged while riding.

Luxos Iq2

Base2,
My thought was to charge a battery pack. Since we tour on singles, we have toured on our tandem but my wife tires of the view!,and the Garmin is on my wife's bike.

If you need USB power on your bicycle, you can use the B&M E-Werk:
bumm.de/en/products/stromversorgung.html

[MENTION=281631]Tandem Tom[/MENTION], what kind of riding do you do? I've determined that charging from a dynamo is too expensive and not worth it. I strap a $20 external battery to my top tube, and it provides power for a long time. I once powered my phone on a six-hour ride with the screen on the whole time. At the end of the ride, the phone was still at 100% charge. I had brought a second external battery but didn't end up needing it. Dynamo charging seems useful only if you are away from a power outlet for a long time.

We both have Dyno hubs on our touring bikes already. But your post got me to thinking. I already carry an Anker battery pack and that has saved the day to Powe our Garmin 800 on this year's v2 month European tour. Maybe I will just buy another Anker unit.
Thanks for your reply!!

I have an anker and a zenduro charger pack. The zenduro is nicer, but Amazon had a good sale on the Anker, so I got that. The zenduro specifically mentions charging while charging, but I don't think Anker does that any more. If you are going to use a dynohub usb charger that doesn't already have a cache battery, it's best to have an external cache battery. I have a luxos u, I'm thinking of getting rid of it because I don't trust it.

No two people have the same experience, I did a two week bike tour and my GPS, phone, wifi tablet, headlamp (for my head after sunset), camera, and taillights all stayed adequately charged off of my dynohub. I never plugged into an outlet during that trip.

But I was constantly looking for power on my last tour before I had a dynohub. The photo was from an empty campsite a few hundred feet from the hiker biker site where I was camped, I was trying to charge up everything thing I had with me, in the photo two pairs of AA batteries, a Li Ion battery for my camera, the USB cable is to my tablet. And yes, on a bike tour I carried one of those three into one outlet adapters so I could plug more stuff in. On a bike tour I use battery taillights because they flash, dyno powered taillights do not flash, thus I had to charge AAA batteries too.

Bike touring, I use a headlamp (on my bike) so rarely, that I think in the future I will bring a light weight battery powered one, then the only wiring I have to do when I assemble my bike is to hook up the USB charger to the hub.



If you are credit card touring, I can see where you really do not need a dynohub because you can charge up stuff every night.

The last two touring bikes I built up, by buying a dynohub but not buying a regular hub, my actual cost was not much more for the front wheel. But if you already have a fully functional front wheel and want to upgrade to a dynohub, that is where the costs become quite significant.

Plus of course I had to buy the USB charger, those vary in price greatly.

Of course with an Extrawheel trailer, they use a 2nd front wheel,
which can be another with a dyno hub..

What do you use to charge? I quickly realized I wasn't riding far enough to bother with dyno charging. I have a luxos U, and that was really annoying with my garmin 800. I would say it really didn't work, but I was not an experienced garmin user at the time. The main problem was that the garmin was constantly beeping if I was on a ride with a lot of extended climbing, which I was. I think it would work great with a cache battery.

I have three:
- Luxos U,
- Sinewave Revolution,
- AXA Luxx 70 Plus.

The Luxos U has a built in pass through cache battery, the others on my list do not. The Luxos U pass through cache battery is quite small and only has minimal capacity.

With the Luxos U I usually ride the bike for at least 10 minutes before I start charging anything to give it a head start. If you measure the amount of current going into your device (in this case your Garmin) it might be taking power out of the built in pass through cache battery faster than your dynohub can replenish the built in battery. In that case I have found on my Luxos U that everything is working fine until the built in battery is depleted. Then the Luxos U stops sending power for a few minutes to start to replenish the battery in the Luxos U and after a short while it then starts charing your device again. This on and off charging that you experienced is not ideal. And it is not limited to slow hill climbing, it can even occur on the flat when you are riding faster if your device can suck power out of it faster than the dynohub can produce it. When my Luxos U battery is depleted and the red light on teh handlebar button goes out, I unplug whatever I am charging for a while (say 15 to 30 minuts or more if I am on flat ground) to let the Luxos U internal battery catch up. If I am on uphills and going pretty slow, I just stop trying to charge devices from my Luxos U.

On my other chargers that lack the internal pass through cache battery, I use an external one. The ones that I use are no longer sold, so don't bother trying to find them. They are:
- a cheap solar power bank I bought from Ebay, shipped from China without a brand name.
- a Brunton Ember 2800 solar powerbank.
- and a Steripen solar power bank.

I think that the solar power powerbanks are designed so that the battery can accept power input at the same time that it is charging another device. I also had some small cheap powerbanks that did work as pass through cache batteries, but they all eventually died, the list above are the only ones I have that have not yet died.

Someone out there has a website where they gave high marks to a Goal Zero series of powerbanks that purportedly could be used as a pass through cache battery. So, I bought several and they DO NOT WORK with my Garmin model 64. In all fairness the 64 is very picky about the power supply, but because they do not work for me I would not recommend them to someone else.

And of course there are the cycling specific pass through cache batteries that cost a fortune.

So, I think you can either buy an external pass through cache battery that is big enough to supply your device while you are out hill climbing and use that with your Luxos U. Or, you can do what I do, just stop trying to charge your device for a whlle when the Luxos U battery become depleted (the red light goes out).

A lot of people that do bike touring will carry a large power bank and just charge that all day long, then at night they use that to charge their other devices. I instead opt to charge my devices while I am rolling instead.

As a third option, if you were trying to charge up your devices during daytime and then use the headlight at night for some long multi-day rando events, you might want to carry a larger powerbank and then recharge that powerbank during daytime and use that keep your Garmin powered up at night.

In the photo I am using the Sinewave Revolution (small white thing strapped onto top tube near head tube) to keep my devices charged up. There were not a lot of other places to plug in for power. And the road quality was not so great, so I was not going really fast. I bought the Sinewave for that trip because I think it might have the best waterproofing of all the USB chargers for dynohubs out there. I had not yet bought my Garmin 64 when I was on that trip, I was using an older GPS and using an Eneloop charger to charge up my AA and AAA batteries.