Toyoda-Gosei High Power True White (II?)

AilSnail

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Anyone know anything about these?
From what I have surfed through the last days, it is a development from the "true white hi" which I have been unable to acquire.

Some say the "high power" can put out 20 lumen, some say it can draw 500mA. The package is also supposed to be very small SMT.

TG true white is a purple die with some RGB phosphors in it making a CRI of around 90 IIRC.

You who have some more knowledge than me, where do I get these things? and are there other high CRI leds out there?
 

IsaacHayes

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Jan 30, 2003
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Missouri
Hmm. sounds interesting, need to find out the lumens/watt.
But the RGB should be nice. I wonder why they don't just use a white phosphur over it instead of sepearte RGB ones?
 

lamperich

Enlightened
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Dec 26, 2004
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370
@ Iass


LumiLeds have only round about 70 CRI!

iam and some others guys out there still not satisfied with brown and orange Colour Rendering. My 2 Lumileds Lux1 looks really like "Ghostlights".



I hope other and better phosphor also last as long as the ones on the lumileds.....
 

NewBie

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Feb 18, 2004
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Oregon- United States of America
Here is the US distributor.

http://www.microlamps-tg.com/

I have the True White Hi, yes, the color rendering is quite noticeable.

Spectrum stuff:
http://www.microlamps-tg.com/html/Prod_white_compare.htm

Here is a thread I did on them about a year and a half ago, when they hit the market:
http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Board=LED&Number=964567

More:
http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Board=LED&Number=904811

Some spectral plots I did myself:
http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Board=UBB1&Number=992120


Oh, BTW, look for Bill Kennedy, he is the TG rep for the US.
 

AilSnail

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Bergen, No
I got some samples of these a while ago. Rep says these protos are close to 90 CRI. Nice and white, but close to the edge of the emission they are yellow. Not pretty in smooth reflectors. Haven't tried any dithering with them yet.
 

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