The new XP-G: another big announcement from CREE

kan3 · Oct 22, 2009

TorchBoy said:
But at least KD doesn't add an unannounced "handling fee" when you get to the last step of the checkout in addition to the shipping. That's pretty dodgy, Cutter.

I don't recall ever seeing a handling fee when I've ordered from them.

It's always price of led + tax + $12 airmail.

kan3 · Oct 22, 2009

Calina said:
Wow! These are twice as expensive as Cutter's.:crazy:

Actually, after you take in account $12 for shipping. You have to order 4 xp-g on stars before cutter becomes cheaper.

saabluster · Oct 22, 2009

kan3 said:
I don't recall ever seeing a handling fee when I've ordered from them.

It's always price of led + tax + $12 airmail.

This is copied directly off of my last invoice. "Shipping and Handling 15.38" Shipping was 12 something out of that.

saabluster · Oct 23, 2009

WeLight said:
Guys, this is not my fee, it is paypal fee, if you use CC through the site there is no fee
Cheers
Mark

Well it would be nice if you called it what it was. If I knew you were charging a fee for that I'd do it directly with my card.:sigh:

Tobias Bossert · Oct 23, 2009

Calina said:
Wow! These are twice as expensive as Cutter's.:crazy:

No, for small quantities it isn't twice because of shipping fee.

But even if it would be:

Cutter doesn't specifie the color BIN, it is 00H51, which means the whole range of all 28 collor BIN within cool white (area 0S-0R-3R-3S), all from yellow greenish to magenta... and all equivalent temperatures from 5000K to 8000K too!
Kaidomain sells color BIN WC, which is "colorfree" cool white (near to BBL) at 6350K to 7000K - much narrower!

I prefer to avoid color lottery.

mudman cj · Oct 23, 2009

Tobias Bossert said:
No, for small quantities it isn't twice because of shipping fee.

But even if it would be:

Cutter doesn't specifie the color BIN, it is 00H51, which means the whole range of all 28 collor BIN within cool white (area 0S-0R-3R-3S), all from yellow greenish to magenta... and all equivalent temperatures from 5000K to 8000K too!

Kaidomain sells color BIN WC, which is "colorfree" cool white (near to BBL) at 6350K to 7000K - much narrower!

I prefer to avoid color lottery.

If you think you can trust the "WC" designation. Check out the 'Hightlight' section below. The first 'hightlight' is:NO.:XPGWHT-LE-0000-00H51

Looks like the same range of tints to me. WC is there IMHO because they think it will make people want to buy it.

jmodic · Oct 23, 2009

mudman cj said:
Check out the 'Hightlight' section below. The first 'hightlight' is:NO.:XPGWHT-LE-0000-00H51

And do not even try to understand what they were trying to say in the highlight #2! :ohgeez:

jirik_cz · Oct 23, 2009

mudman cj said:
WC is there IMHO because they think it will make people want to buy it.

Exactly. And I don't trust them that they really have R5...

4sevens · Oct 23, 2009

jirik_cz said:
Exactly. And I don't trust them that they really have R5...

Just to clarify, the XP-G's are on a new ANSI standard tint binning system.

The fact that they are claiming WC indicates bogusness.

There are not such things as XP-G R5 WC.

Cree doesn't make them! It's unbelievable what people will do to win a buck.
I always believe that one's actions whether honorable or dishonorable eventually everything catches up to you. :)

Curt R · Oct 23, 2009

4sevens is correct in the color bin statement. Right now we are forced to accept whatever is in the pipeline as to color tints and forward voltage. Cree has never been one outfit to be kind to white wall hunters. They ship kits which may contain anything that they may have laying around in stock. Ideally we would like to get tint bins 2A, 2B, 2C and 2D. 1C and 1D would also be acceptable. There are 40 tint bins in the new system, (ANSI C78.377A), covers 16 of them. Cross reference would be close to Crees WD and WC, Seouls SWO and SXO, and Luxeon WO and XO. When Cree has more product available we may then be able to get what we want, until then we have to be satisfied with a high performance, high output device and the tint lottery.

Curt

IMSabbel · Oct 23, 2009

At least they are better than OSRAM.
With them, i never even bothered to buy a sample (because "550-1000 lumen, 4000-9000K" seems a _little_ vague as a product description...)

But i am pretty sure that as Cree is ramping the production up the selection will broaden.

bshanahan14rulz · Oct 23, 2009

anybody received a KD xpg? I'm not buying from cutter :broke: but perhaps if I ever have to buy more than single quantities, and have money :nana:

I would definitely rather be able to choose my bin and tint instead of buying an XP-G w/o knowing anything about it. meh, beggars can't be choosers. well, thrifty shoppers can't be choosers either.

WeLight · Oct 23, 2009

saabluster said:
Well it would be nice if you called it what it was. If I knew you were charging a fee for that I'd do it directly with my card.:sigh:

Fair Comment, I will change the description

Ekke · Oct 26, 2009

Slightly filed XP-G, still smiling: :rolleyes:

saabluster · Oct 26, 2009

Ekke said:
Slightly filed XP-G, still smiling: :rolleyes:

Wow! Talk about extracting lumens. Why? Reverse engineering?

Ekke · Oct 26, 2009

saabluster said:
Wow! Talk about extracting lumens. Why? Reverse engineering?

I just wanted to see what there is under the die. Popped the dome when tried to fit lens and later broke the bond wires so it was dead already. :whistle:

saabluster · Oct 26, 2009

Ekke said:
I just wanted to see what there is under the die. Popped the dome when tried to fit lens and later broke the bond wires so it was dead already. :whistle:

Well thanks for posting the pics. Always love to see dissected LEDs. :D Were you able to pop the die off intact by any chance?

bshanahan14rulz · Oct 26, 2009

WeLight said:
I have yet to add bin choices because we effectively have been sent a limited narrow choice as they yield and we get more stock we will. I think it is a little unfair as with all other Cree leds we are the one of the few who offer complete details of bins and a wide range, cant please everyone however

Don't get me wrong, you guys always have the best selection and variety of the top and best of the best. Just I have to make a compromise between the assurance of quality I'd get with Cutter vs. the price (which is only lower in small quantities of less than 3, from what I've been told, otherwise cutter is still the best choice). But the lower price comeswith the doubt of not knowing if the specs in the description are real or not, which is not even a problem with Cutter's site.

When those warmer tint xp-g come in I'll start saving up for a few :twothumbs

Edit: and yeah, did you get the die off in one piece? is it still mounted on top of the SiC diode or is it to the side like the xp-e? I'm always fascinated by this stuff. I wish I still had my old xp-e die, but it snapped in half and stopped working

Ekke · Oct 26, 2009

saabluster said:
Well thanks for posting the pics. Always love to see dissected LEDs. :D Were you able to pop the die off intact by any chance?

Didn't even try, used only a file. Sadly I didn't take so many pictures, but there seems to be some really hard material below the die. That "pcb" is also pretty hard and brittle. I think I have to grind that a little bit to see how die is connected to the center tap. There isn't electrical connection so there has to be insulator in somewhere. As you can see in the pic, center of copper is connected to + pole, but center tap in the bottom of the led isn't.

lolzertank · Oct 26, 2009

Ekke said:
Sadly I didn't take so many pictures, but there seems to be some really hard material below the die. That "pcb" is also pretty hard and brittle.

Probably the SiC (silicon carbide) ESD diode. :grin2:

The new XP-G: another big announcement from CREE

Help Support Candle Power:

Newly Enlightened

Newly Enlightened

Flashlight Enthusiast

Flashlight Enthusiast

Newly Enlightened

Flashlight Enthusiast

Newly Enlightened

Flashlight Enthusiast

Flashlight Enthusiast

Enlightened

Enlightened

Flashlight Enthusiast

Enlightened

Newly Enlightened

Flashlight Enthusiast

Newly Enlightened

Flashlight Enthusiast

Flashlight Enthusiast

Newly Enlightened

Enlightened