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Max
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. « on: April 15, 2014, 12:26:16 PM » Author: Max
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« Last Edit: July 02, 2017, 11:16:08 PM by Max » Logged
Kappa7
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Re: Osram develops a 215 lm/W white LED tube with a CRI of Ra8=90 « Reply #1 on: April 15, 2014, 05:01:10 PM » Author: Kappa7
Impressive.
They use blue, blue + phosphor for the green and red LEDs like Philips with the TLED?
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marcopete87
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Re: Osram develops a 215 lm/W white LED tube with a CRI of Ra8=90 « Reply #2 on: April 15, 2014, 05:48:59 PM » Author: marcopete87
yes, green leds are quite inefficient, so they have to use greenish phospor.
However, i think if they put this kind of technology in A60 shape, i'll need to replace 99% of lamps in my house (they are mostly led lamps)  :P
« Last Edit: April 15, 2014, 05:51:02 PM by marcopete87 » Logged
dor123
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Re: Osram develops a 215 lm/W white LED tube with a CRI of Ra8=90 « Reply #3 on: April 19, 2014, 08:37:00 AM » Author: dor123
I've still don't believe these BS figures. Most LED products in Israel, PROVED to be produces less light than HPS lamps of the same wattage. Areas in Israel, that were once lit by HID lamps, and now lit by LED, looks much dimmer than before, and the fixtures are much glary and have a harash color.
I don't know how the LEDs, which until the 2000's had a fraction of lm/w, suddenly would jump to figures thats higher than SOX-E LPS lamps and with Ra8>90 at the same time. Neither incandescent, neither HID did such a jump in so much short time.
I'm still stand 100% behind my opinion, that LED can't beat 50lm/w outside the laboratory and inside a commercial product, and that all of these fictional efficacy figures that published by these LED companies, are a BIG FAT LIES.
« Last Edit: April 19, 2014, 12:28:42 PM by dor123 » Logged

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the international date format (dd.mm.yyyy).

I lives in Israel, which is a 220-240V, 50hz country.

marcopete87
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Re: Osram develops a 215 lm/W white LED tube with a CRI of Ra8=90 « Reply #4 on: April 19, 2014, 11:17:42 AM » Author: marcopete87
actually, my ikea ledare 400lm replaced my 40W incandescent lamps with great success  :)
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