New WH bin EZ900 die R2's

[kengps]

Hey guys, been doing some testing with the smaller die XR-E R2 cool bin LED's. I'm getting 17-22% better lux with these over the WH bin EZ1000 LED's. I'm pushing them at 1.4 Amps and my Tiablo A9 Aspheric is getting 105,000 to 108,000 lux with them. I got a 22% increase in lux when running the reflector on my A9's. Cutter tells me all the cool bin R2's are on EZ900's now. Maybe only warm bins still use the EZ1000 die. SO....finally some good news on the surface brightness front for thrower lights. Of course it does make the hot-spot/Die image smaller.

UPDATE....got a new AEMC CA813 light-meter. My Tiablo A9 EZ900 1.4A aspheric is getting 121,000 lux, and 42,800 with the reflector head. My EZ900 Lumapower Turbo-Force head is getting 103,000 lux. All measurements done at 10 Meters.

 

[znomit]

I got a 22% increase in lux when running the reflector on my A9's.

Yup.
0.9mm die instead of 1mm
(1/0.9)^2 =1.23

Thats three bin jumps in throw.

 

[kengps]

Yup.
0.9mm die instead of 1mm
(1/0.9)^2 =1.23

Thats three bin jumps in throw.

Wow...so I actually tested something accurately Didn't know the formula for that. Something more....the brightness across the die is much more consistant than EZ1000. On my Aspherics I see a 29% difference in Lux from the center of the die image to the hottest part near the wires. The EZ900 is only 12% difference. I just noticed my Masterpiece Pro 1 with 54,000 lux has EZ1000. If I swap it with EZ900 I should be at 65,000 lux!!

 

[znomit]

Is it just XRE using the EZ900 or are they on the XPE too?

 

[kengps]

I don't know anything about the XP-E's, sorry. Not sure if it would do anything for you on XP-E's. Same Lumens as EZ1000, just a smaller die which gives a smaller hotspot on the XR-E's. Aren't XP-E's a much wider beam angle? So not used for optimum throw?

 

[red02]

Kengps, any chance for those 5m lux comparisons? With a DBS?

EDIT: forgot to read the thread title...

 

[kengps]

I can't give you a good, controlled comparison with the DBS reflector I have. My Tiablo A9's have the same identical driver, reflector, Aspheric lense. I can do an Apples-to-Apples comparison using those. I did put the EZ900 R2 of my new skyline II up to the DBS reflector and it was much a tighter hot-spot than the EZ1000 sized spot. I have a 1.2A Dereelight pill for the DBS reflector, and I'll try to get some test numbers later. Problem is I have to get up at 2:00 AM on a cloudy night to get good numbers right now. I'm in Alaska.

 

[red02]

I'd definitely appreciate it. Do this at your earliest convenience, I'm not in any rush to order from Australia.

I'm just wondering if this an incremental upgrade, or if its really worth forking over the extra cash. Those A9 numbers are classically close to the DBS, so it should be a great indicator.

Alaska sound nice this time of year...

 

[recDNA]

[comment deleted - Rule 8 violation - DM51]

This forum has fewer visitors.

Anybody know anything about the S version that is supposed to come out?

 

[kengps]

I've only heard mentioned the "S". The big news seems to be "XM". Cree has an actual press release about the XM. Not gonna be a thrower LED though. More like a more-efficient version of an SST-50.

 

[bshanahan14rulz]

Wow...so I actually tested something accurately Didn't know the formula for that. Something more....the brightness across the die is much more consistant than EZ1000. On my Aspherics I see a 29% difference in Lux from the center of the die image to the hottest part near the wires. The EZ900 is only 12% difference. I just noticed my Masterpiece Pro 1 with 54,000 lux has EZ1000. If I swap it with EZ900 I should be at 65,000 lux!!

It's always neat doing experiments and then having someone confirm that yes, those numbers make sense. observed 22%, calculated 23%. Very cool :twothumbs

 

[kengps]

It is....I just went back and looked at the numbers. My exact number was 1.2263

 

[saabluster]

[comment deleted - Rule 8 violation - DM51]

This forum has fewer visitors.

Anybody know anything about the S version that is supposed to come out?

We don't put threads in forums based on how much traffic it will see but the relevance it has to a given forum. If people don't have the sense to come down here it's their loss. Besides how we going to get more traffic here if the good nuggets are posted elsewhere?

[Post deleted - Rule 8 violation - DM51]

Keep in mind moderator decisions are not up to public discussion. If you really feel he was in error you can PM him.

Although you mentioned specific lights over there the subject matter and the reason for the post was the newly revised LED. Since the "point" of the thread was about an LED it seems best to be in the LED forum. I didn't think you were trying to use the other one as a pointer per se but I don't see the relevance of having two threads discussing the same topic side by side which was what was happening.

You did say over there.
"But wanted to say that the new R2 lights coming out are shipping with a new smaller die that gives 22-23% increase in lux."

Again there is no specific light that has come out with this new LED that you wanted to direct peoples attention to. There were some DIY swaps done by yourself but then those should be posted in the "Homemade and Modified" section.

It stands to reason that people will talk about the various possibilities as far as swapping in the new LED and its ramifications therein within the main thread dedicated to the LED. There is no need for a separate thread for this.

 

[bshanahan14rulz]

[Baiting comment deleted - DM51]

 

[justlux]

Thank you for the good news. I love throw and i am coming up with all kinds of mods.

Does anyone know if the new XR-E R3 will be using the smaller EZ900 die? I am greedy and would like to sneak in a few extra lumens as well as a lot of lux

 

[saabluster]

Thank you for the good news. I love throw and i am coming up with all kinds of mods.

Does anyone know if the new XR-E R3 will be using the smaller EZ900 die? I am greedy and would like to sneak in a few extra lumens as well as a lot of lux

There is no evidence they will even bring out an R3 XR-E. In fact I'd say the evidence is mounting that they are intentionally holding the XR-E back by shunting all the best dies to the XP-E and reducing the size of the die to keep its output artificially lower. It's very sad really.

 

[red02]

There is no evidence they will even bring out an R3 XR-E. In fact I'd say the evidence is mounting that they are intentionally holding the XR-E back by shunting all the best dies to the XP-E and reducing the size of the die to keep its output artificially lower. It's very sad really.

Why would they do that? Don't they have a vested interest in producing the highest output LEDs?

 

[Lampyris noctiluca]

Why would they do that? Don't they have a vested interest in producing the highest output LEDs?

I think it is because the XP.. leds are cheaper to produce and "industry" finds them easier to handle as they are just like smt components.

Shame on them!

 

[saabluster]

Why would they do that? Don't they have a vested interest in producing the highest output LEDs?

They have a vested interest in being a profitable company. Everything else springs from this.

You see the same thing in the automotive segment where manufacturers will lower the output of the same engine in a cheaper model so it will not steal sales from the more profitable flagship. It happens all the time. I don't know that is Cree's intention but it sure seems that way doesn't it?

Now they have Genll ez900 dies putting out the same amount as the old top-o-the-line Genl ez1000. That has to mean that Genll ez1000 in R4 and R5 are right around the corner but I can almost guarantee the XR-E will never see it. They will all be going to the XP-E. It is a far cheaper package to produce for Cree and I imagine the profit is higher on them as well. 1+1=?

 

[red02]

They have a vested interest in being a profitable company. Everything else springs from this.

You see the same thing in the automotive segment where manufacturers will lower the output of the same engine in a cheaper model so it will not steal sales from the more profitable flagship. It happens all the time. I don't know that is Cree's intention but it sure seems that way doesn't it?

Now they have Genll ez900 dies putting out the same amount as the old top-o-the-line Genl ez1000. That has to mean that Genll ez1000 in R4 and R5 are right around the corner but I can almost guarantee the XR-E will never see it. They will all be going to the XP-E. It is a far cheaper package to produce for Cree and I imagine the profit is higher on them as well. 1+1=?

Good point, I wonder if things would be different if they had more competition. Cost/performance wins in the end, even when performance isn't the best... real shame I really like the XRE.