Where can I get decent XR-E's?

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kuksul08

Enlightened
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Jun 4, 2007
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I mean, deal extreme is an option but they are slacking big time lately. The other major source I have seen is Cutter...but the prices are ridiculous.

Where can I get them? Preferrably Q5 or R2.

LED supply has the Q4's for a reasonable price, but how do they stand up to the latest ones realistically?

Thanks for any help :popcorn:
 
Are you sure you check the prizes in USD not in AUD:grin2:
Me thinks the prizes are very reasonable in cases you buy more than few. Shipping and handling does cost thought. but where else you can choose from so many different bins.
I'm happy with my Q3 3A that I bought few weeks ago.


Juha
 
kuksul08 said:
Still, I think $72 for four XR-E Q5's is a bit much
Click to expand...

How do you get 72?
The R2s are about 10 US$ each.

With DX you never know what you're getting. Expect a bin or two less.
A few extra dollars per led is nothing when you've spent many hours building the lights, and you'll likely save money on the battery too.
 
LukeA said:
THE PRICE IN AUSTRALIAN DOLLARS IS NOT THE PRICE YOU PAY IN US DOLLARS
Click to expand...

$10.45 USD plus unknown shipping dollar units each

I guess it's not that bad.

Is the R2 worth the extra ~$1.50 each? What tint is the best for not being bluish?

:mecry:
 
What tint is the best for not being bluish?
Click to expand...

Not the R2's....at least going by the last ones I got from DX.

I have a R2 from DX and Cree WW P4 from LedSupply sitting on identical heat sinks at home right now being driven in series on the same circuit. So, it's a pretty interesting comparison of technology.

Obviously the R2 is orders of magnitude brighter - painfully brighter, but it has just enough of that annoying purple/blue-ish hue to it that makes it useless for anything other than utility lighting (or flashlight use). The WW P4s (not sure what bin they are) are far more pleasant to look at, but strangely are putting out more heat than the R2s.

I ordered 6 of each, and there is some variance. The WW P4 vary a bit more in terms of color than the R2s. I wish I had some of the neutral white Crees for comparison.

Obviously the advantage with LEDsupply is the shipping if you are in the U.S. I live in the midwest, and $6.00 FedEx shipping from LedSupply gets them to my door in two days - Nothing against Cutter or DX of course.
 
ETG usually has a reel of Cree Q5's open. That's where I've been getting them for a while now.

I pick up R2's here and there, usually from group buys. I don't know of a reliable source for them at this time.
 
znomit said:
How do you get 72?
With DX you never know what you're getting. Expect a bin or two less.
A few extra dollars per led is nothing when you've spent many hours building the lights, and you'll likely save money on the battery too.
Click to expand...

So you're saying the Q5 they sold me is not a Q5? How did you conclude yours were not the bin advertized?
 
I might be able to get a real of Q4's for around $3-4 each. if there are enough people interested i could do that
 
So maybe it's a safer bet to go with the Q5's over the R2's?

Confused here...if I order from Cutter I want to make sure it's the best thing, they are going in bike lights which I plan on selling... must be nice white, bright, etc.
 
blasterman said:
Not the R2's....at least going by the last ones I got from DX.

I have a R2 from DX and Cree WW P4 from LedSupply sitting on identical heat sinks at home right now being driven in series on the same circuit. So, it's a pretty interesting comparison of technology.

Obviously the R2 is orders of magnitude brighter - painfully brighter, but it has just enough of that annoying purple/blue-ish hue to it that makes it useless for anything other than utility lighting (or flashlight use). The WW P4s (not sure what bin they are) are far more pleasant to look at, but strangely are putting out more heat than the R2s.
Click to expand...
The R2 is not a tint bin. It is a flux bin. If you don't like the bluish tint and you still want R2 level of output get the WH tint bin.
 
Hmm not bad, 69.35 USD shipped for 6 cree XR-E Q5 WH leds, thats about twice the price on DX, but supposedly the quality is guaranteed.
The more natural/pleasing light is more towards the 5000k range, so that means I should shoot for WH or WJ bin? I'm not really sure how to interpret the plot on the binning and labeling datasheet for the Crees. What does the vertical direction coorespond to? What is the best range for night riding?


Thanks guys, I may just cancel my DX and buy from cutter.
 
kuksul08 said:
Confused here...if I order from Cutter I want to make sure it's the best thing, they are going in bike lights which I plan on selling... must be nice white, bright, etc.
Click to expand...

If you're selling them... :thinking:
Either go with the cheapest(DX) to maximise your profit margin, or go with a reputable cree reseller(cutter) so you can stand behind the lumen claims on your products.
 
znomit said:
If you're selling them... :thinking:
Either go with the cheapest(DX) to maximise your profit margin, or go with a reputable cree reseller(cutter) so you can stand behind the lumen claims on your products.
Click to expand...

Well I'd be selling them to my friends... I don't think they'd know the difference of the DX ones or not, but they are never freaking shipping! A month waiting is unacceptable... I just cancelled my order for the AMC7135's, the R2's and Q5's all from there.

Once it's confirmed I will buy some elsewhere, likely cutter, maybe we can all do a group buy or I can join in on someone's group buy.
 
I've recently purchased DX's R2 WG 20mm stars and they seem to be of good quality. The WG tint tends to lean more towards green that some people consider "ugly", but I don't mind as it's a fact that the human eye see's the most shades of green compared to any other color...it's the reason why night vision equipment uses green and in my opinion, a greenish tint is better than a bluish one. I think it's unfair to overly criticize the things that DX sells. Sure there can be a lot of junk sold there, but my experience with them has generally been good for the most part. I just wish DX has the R2s on 14mm MCPCBs as well as just the bare emitter...I guess from that standpoint is where they have been slacking lately.
 
ace0001a said:
I've recently purchased DX's R2 WG 20mm stars and they seem to be of good quality. The WG tint tends to lean more towards green that some people consider "ugly", but I don't mind as it's a fact that the human eye see's the most shades of green compared to any other color...it's the reason why night vision equipment uses green and in my opinion, a greenish tint is better than a bluish one. I think it's unfair to overly criticize the things that DX sells. Sure there can be a lot of junk sold there, but my experience with them has generally been good for the most part. I just wish DX has the R2s on 14mm MCPCBs as well as just the bare emitter...I guess from that standpoint is where they have been slacking lately.
Click to expand...


How recently did you order those? I honestly just want anything at this point without spending a crapload of money. I had my whole pricing plan based around a $7 emitter.
 
The R2 is not a tint bin. It is a flux bin. If you don't like the bluish tint and you still want R2 level of output get the WH tint bin.
Click to expand...

I know that.....but obviously DX doesn't....sorry if I wasn't clear about that.:whistle:

The extra heat produced by the P4 WW was surprising though.
 
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