969 lumen WARM white bulb runs at 9.5 watts

[BentHeadTX]

More info coming out of Cree

Today, at the annual Cree
(Nasdaq:CREE) shareholder meeting, Cree Chairman and CEO Chuck Swoboda
demonstrated an A-lamp LED light bulb with the highest lumen output and efficacy
reported in the industry. The bulb produces 969 lumens at an impressive 102
lumens per watt, which is the light output equivalent to a 65-watt incandescent
bulb, yet it uses only 9.5 watts.

The demonstration A-19-style bulb features the latest Cree production XLamp(R)
XP-G LEDs and TrueWhite Technology, a patented method of delivering warm-white
light with superior color rendering and efficiency. It delivers a 2800 K
warm-white light with a 91 CRI. All data was verified by third-party testing
under steady-state operating conditions.

 

[csshih]

2800K?

that's really yellow!

 

[BentHeadTX]

2800K?

that's really yellow!

True, but they wanted to show something that is close to an incan bulb and they achieved their goal. I wonder when these bulbs will start coming out? I could use a few of them in my high light use areas.

 

[jtr1962]

I'd really like to know how they've dealt with the heat problem. From my recent testing of LED screw-in bulbs, I've found that 4 to 5 watts is about the upper limit for heat production given the space constraints of the A19 lamp. And yes, 2800K seems awfully yellow, although keep in mind the goal here is to mimic incandescent light. I've already written a long diatribe in another thread a few months ago on why I feel the LED industry should avoid trying to imitate incandescent light. Hopefully they'll have a range of color temperatures once these are available for commercial sale.

 

[Juctuc]

I think this is just a bulb to L Prize-competition. Philips has allready made own bulb, so cree is making one also.

Those numbers are exactly what they need to be in the L Prize-competition.