6,000 lumens

That’s an interesting light…

http://singletrackworld.com/2013/12/absolutely-mental-6000-lumen-trail-led-halo/

$1200… are you kidding me??

Cool design but thats a hefty premium for less than $50 in materials… just sayin :roll:

Here’s a listing for a 5000 lumen(claimed) light without battery for $17, free shipping…

http://www.ebay.com/itm/CREE-XM-L-2xU2-LED-5000-Lumens-3-Modes-Bicycle-bike-HeadLight-Lamp-Light-/141130730133?pt=LH_DefaultDomain_0&hash=item20dc0c0a95#ht_7498wt_925

[quote=“BornAgainKen”]

Here’s a listing for a 5000 lumen(claimed) light without battery for $17, free shipping…

http://www.ebay.com/itm/CREE-XM-L-2xU2-LED-5000-Lumens-3-Modes-Bicycle-bike-HeadLight-Lamp-Light-/141130730133?pt=LH_DefaultDomain_0&hash=item20dc0c0a95#ht_7498wt_925[/quote]

A friend of mine just got one of these… it’s f***ing bright!

[quote=“BornAgainKen”]$1200… are you kidding me??

Cool design but thats a hefty premium for less than $50 in materials… just sayin :roll:

Here’s a listing for a 5000 lumen(claimed) light without battery for $17, free shipping…

http://www.ebay.com/itm/CREE-XM-L-2xU2-LED-5000-Lumens-3-Modes-Bicycle-bike-HeadLight-Lamp-Light-/141130730133?pt=LH_DefaultDomain_0&hash=item20dc0c0a95#ht_7498wt_925[/quote]

So if one was interested is one of these super bright lights where would one get a reasonably priced battery?

Here’s the link for the same light with battery pack…

http://www.ebay.com/itm/SKYRAY-SolarStorm-2x-CREE-XML-U2-LED-Bike-Bicycle-HeadLamp-Light-4x-18650-D0145-/130978319166#ht_7341wt_880

[quote=“BornAgainKen”]

Here’s the link for the same light with battery pack…

http://www.ebay.com/itm/SKYRAY-SolarStorm-2x-CREE-XML-U2-LED-Bike-Bicycle-HeadLamp-Light-4x-18650-D0145-/130978319166#ht_7341wt_880[/quote]

Seriously??? I paid $350 for the 500 Lumen, entry level light I have. What’s the deal here? If I bought one would my hydration pack catch fire?

The deal is these lights are basically direct from the chinese factory. The price is amazing but pretty much forget about after sale support if something f****s up. Still worth it in my opinion.

My buddy went for the 5000 Lumen “Solar Storm” while I went for 2x1800 Lumen lights for the same price (one on the bars, one on the helmet). He got his a couple of days ago and like I said- bright as f*** and basically the same price we paid for our puny 180 Lumen lights locally. Mine should be here next week.

[quote=“muddy”]

Here’s the link for the same light with battery pack…

http://www.ebay.com/itm/SKYRAY-SolarStorm-2x-CREE-XML-U2-LED-Bike-Bicycle-HeadLamp-Light-4x-18650-D0145-/130978319166#ht_7341wt_880

Seriously??? I paid $350 for the 500 Lumen, entry level light I have. What’s the deal here? If I bought one would my hydration pack catch fire?[/quote]

The issue with the Chinese lights are many, the build quality can be very variable to the point where things show up completely non-functional and they have an extremely bad habit of grossly overestimating (lying about) output.

That 2xLED light has CREE XM-L2 LEDs that have a maximum output of 1193-1268 lumen’s for the U3 bin’d LEDs, and only when driven at 3 amps, neither of those things are likely true in this case. They are using U2 bins because they are cheaper, and driving them at 2-2.5 amps, probably with drivers that are of poor quality and efficiency as well. That means that each LED is putting out around 800-900 lumen at the emitter, they are not using AR coated lenses so the reflector and lens losses are likely in the 30% range. That gives it an output of around 1300 lumen out the front, nowhere near the claimed 5000 (still very bright though).

Also the batteries that come with these are usually shite and can’t keep up with the current draw, the really cheap ones have a habit of violently exploding when charging as well.

The lights in the shops are overpriced, but the super cheap ebay lights are cheap for a reason.

Check out the light forum over on MTBR there are usually quite a few people that have bought lights like these and give a fairly good overview of what to expect. If nothing else, these cheap lights are a great starting point to pick up good quality LEDs/drivers/batteries and build your own.

I’ve had both the high end and low end lights. I recently bought a low end light and hope to get two years out of it. If I had the money I would have preferred to purchase a high end Serfas or similar and would expect to get better durability, actual claimed light output and better quality. If I was racing 24 hour events, or commuted I would have one from a local shop no question at all in my mind.

The reviews at MTBR were enough to scare me away. I’ll stick with a reasonably priced north american unit, thanks.

Also, didn’t see any mention of burn times but 1 listing on ebay quoted <30mins. That can’t be right?

Yeah, for me it’s about having a light or not… can’t justify paying the retail price for a light. To be honest, I could really care less about lumen numbers as long as it lights up the trail. When I see something selling for $1200 that manufactures for under a hundred bucks it riles me up as I think mtb’s get hosed on a lot of product costs… not talking about the LBS… they have to make a living. I’m talking about the distributors and manufacturers.

FWIW, I think the battery catching fire thing is yesterday’s news… unless someone has some recent accounts. I have a number of off shore rechargeable li-ion’s and have never had a problem.

That is the hallmark of knock off batteries. Sometimes the sellers will build packs with cells out of used laptop batteries, sometimes they will manufacturer their own, poorly. It’s not uncommon for knock off batteries to have 1/3 to 1/4 of rated capacity. Here is an example http://budgetlightforum.com/node/23603 , UltraFire 880mAh batteries with less than 400mAh. Another example http://www.ebay.ca/itm/UltraFire-18650-4000mAh-3-7V-Rechargeable-Li-ion-Battery-for-Torch-Flashlight-BR-/151180826752?pt=LH_DefaultDomain_0&hash=item2333145880 4000mAh? No effing way, the best 18650’s you can get right now are Panasonics @ 3600mAh and those just came out and are over $20 per protected cell.

[quote=“BornAgainKen”]
FWIW, I think the battery catching fire thing is yesterday’s news… unless someone has some recent accounts. I have a number of off shore rechargeable li-ion’s and have never had a problem.[/quote]

For brand name cells yes, I think after the laptop battery explosion fiasco a few years ago the big manufacturers have up’d their game. Though I think it was only Sony that was involved in a big way.

Cheap knock off cells are another thing though, here is an example from just last year ( http://budgetlightforum.com/node/13539
). The problem with these batteries is that you have no idea what you are getting. The charger is the other component, most of the explosion events occur while charging, lithium ion batters need to be charged in a very specific way (CC/CV charging with a cut off when done) and that requires relatively complicated circuitry. The $30 Chinese light’s charger will not do this, they usually just apply 4.2 volts at a set amperage to that batteries (this is very wrong) and they have habit of not cutting off at 4.2 volts. This is where you get into danger territory, knock off batteries that do not meet specs at all plus a charger that doesn’t either.

I’m not saying all lights made in China are bad, I have one of these http://www.cnqualitygoods.com/goods.php?id=1640 that I bought at another site before they stopped selling them. The light is fairly good, output is accurate (I compared it with some of my flashlights that really do 800+ lumen), the battery pack has 3 real 2200 mAh Sanyo cells. However the bar mount was crap so I swapped it out with a hope one and the charger was terrible, doesn’t use proper charging characteristics and took 8 hours to charge the pack, so I use my Turnigy hobby charger to charge the pack now.