High CRI led bulbs

@texaspyro

30G0540-00 can still be found, especialy in the US :slight_smile: Its a great emitter though, great! Maybe your driver wasnt that good, you can also use a meanwell current driver to drive them in pairs, they are cheap and a very good option

Phillips emitters ……its actualy Cree you know, and there arent many high CRI with good R9 value mr16 or whatever kind of bulbs arround,plus in US it maybe 30$, but in EU (cause we are ritch:)) its above 30euros(40:money_mouth_face:
For me, luments and total watts arent that important, but the CRI… your skin looks pale, red oak is looking like shit, CRI 80 is way low, if you ask me they should ban(for indoor use) everything lower than 90

Datasheet for that led says:

"Typical R9 value for 90 CRI product options is 50."?

They said its AT LEAST 50, the CRI meter of that bin 00 says its very high, i think they are insuring for some reason, unkown to me:

Its a very good emitter realy, the price is lovely too, especialy for a spotlight use

Look at this Nichia

R9 its mentioned to be 0 :slight_smile: Well…

Btw, mentioning R9 is the ultimate proof for me that the company is serious enough

Companies that dare to write something abou tit are Cree, Bridgelux and Nichia, all the rest are silent about it - for me, its not serious

Something curious, Vero series ,

Claim to have R9> 70, yet, its lower than ES Star array ,arround 80, maybe cause its more powerful( one reason) and i used generic MW drivers to power then
CRI (R9) depends alot also from the driver, Linear Technologies have so called “chip pre-heat” technology in order to rise the Total CRI.

Something that is good to know:

There are lotsa Taiwan BXRA clones…that are not even near the quality of the american chips, look at this Edison chip, the price was tempting, so i took several samples for evaluation

So what had happened after 6 months/ 24/7 test, running at its deault , on an open air, with a suitable headsink, the temp in the control point of the emitter was arround 62-3deg C all time, room temp 25-27deg C

Burned out SP coat, dramatic crom shift( from 3000k to nearly 3800k), great drop in the CRI too

Only for 4k hours….great, Edipower 2…Taiwan manifacturers are way behind USA ones

But are light years ahead of the mainland clowns…

Vero stuff looks good, but I have not done much with them. The BXRA stuff is being discontinued… alas, poor C9000… I knew him well…

Well… in general, considering mass stock in Alibaba( or M.I.C) you maybe right, there are emitters that are a shame for the industry indeed :slight_smile:

Things are changing rapidly

Its a public secret that MLS invented the COB emitter back in 2004( or it was 2005?), regretably i havent touched their product yet, no EU suppliers, Asia ones demand orders above 1k
With 5 billion produced emitters and official reniew of above 500 mill they have everything needed to produce quality stuff….yet, we aint sure about it .

Back to the topic!

I wonder, how did i missed this?!? Maybe my age you know, whatever :slight_smile:

Yet, another great option that i implemented recently:

CREE - CXA1304 A430F bin, rated CRI is 95, measured R9 is always >96 !

The price in EU is like 2.5, maybe in the USA you could find it way cheaper: the better option over Bridgelux matrix emitter

Even more, its working at 9v/300ma, and there are tons of that kind of bulbs in Alibaba, realy cheap, with good drivers and reflectors but hella crappy emitters

I have bought a bunch of these to modify my LED security lights. For $4.64 it’s hard to beat. Beautiful 5000K 90+ CRI. R9 @ 70.

The CXA’s available at Digikey with >90 CRI are $20 plus!

Ive been playing with 97 CRI 100 watt Bridgelux RS emitters for a while and really enjoy the high color saturation. Its nice that more high CRI options are trickling down to the consumer market.

UV spectrum should be a warning to all, a slight CRI benefit is completely outweighed by the negative, if the price is exposing yourself to more UV spectrum.

Exactly.
My first thought, no thanks.

Eh. UV shmyoo-vee! I ain’t scared! :wink: Just don’t shine it directly in anyone’s eyes - which you shouldn’t be doing anyway.

If you really want a scare, read up on Dihydrogen Monoxide! Another link here.

Dihydrogen monoxide! I confess I was telling to myself wtfits even before I clicked on that link, DavidEF. ROFLMAO!

Well, irrespective of the context…

Cheeers! ^:)

Well has anyone found some high cri BULBS?

Philips range for example?

http://www.ebay.fr/itm/2015-NEW-Cree-XHP70-30G-K2-Warm-White-3000K-LED-with-20mm-Copper-PCB-6V-12V-/371480092234?var=&hash=item567df05e4a:m:mp6FOMT_47y1GxzpmtxZCqg

XHP70 3000k 90+ CRI.

Just putting this here for you.

Thanks, it was already on my wishlist. :-)

The more universal .com link here: http://www.ebay.com/itm/2015-NEW-Cree-XHP70-30G-K2-Warm-White-3000K-LED-with-20mm-Copper-PCB-6V-12V-/371480092234

Cheers ^:)

The latest IKEA bulbs are over 90 CRI. Strange enough they do not advertise it, but it is there on the package. What I do not like is that there is a ripple on the output (only shows on pictures, have not tested the frequency), but then, all Philips and Osram bulbs have that too (but not my Yuji high CRI bulbs).

(apicture showing the ripple, left is a Philips bulb, right an Osram bulb)

I cant find a suitable driver to power this led to 12-20w of power. And a voltage of 12-14V.

Most drivers are 9-12V which is not enough, and above that most of them are 15-22V.

Something like this, but 12V could be a bit low for the XHP70? http://www.ebay.com/itm/Trasformatore-Alimentazione-Driver-220V-240V-a-AC12V-1A-per-lampadine-a-LED-/291188703546?hash=item43cc33013a:g:My0AAOSwwPtTwPpf Or perhaps not?

Perhaps there are better and cheaper with a more common voltage

What about R9 Joz? Any info? I wont use anything but R9>70 in my home :slight_smile:

Will look for the in the local IKEA store and if they are awailable will post results

mdeni, you may want to peek at these: 3-4x3 W Watt High Power LED Light lamp Driver Power Supply 85-265V 600mA

600mA constant current drivers, with adequate output voltage range. With 3 pieces in parallel, ≈1.8A of driving current. Also, having multiple supplies gives you a redundancy reliability advantage: if one of the drivers goes poof, the light will just dim a bit, so you'll know its time to swap a driver.

Cheers ^:)