Sounds interesting until you read the article
The other oddity i found with the article is this
" 60-watt light bulb emits 730 lm, while a 50-watt halogen lamp has an output of approximately 900 lm. To achieve the 1,000 lm output for the tiny Ostar Lighting LED, the experts at Siemens' Osram subsidiary employed a sophisticated system for high chip-packing density, whereby the researchers managed to integrate six high-performance LED lighting chips into the unit's small housing. Each chip has an area of only one square millimeter, which makes for very concentrated overall luminosity."
Right so the
60-watt light bulb emits 730 lm
50-watt halogen emits aprox 900 lm
And to achieve the 1,000 lm ..... wait, how many watts does it take?
Also, I cannot find any real data re these leds and the only stated spec is the lm\w at 350ma with no Vf info. Now assume they test the lm output at a die temp of 25degrees C (just like lumileds) what is the efficiency at 1000Lm
Lets make the same lumens using the new cree dice you would need about 6 dice (same as the ostar) all running at about 0.75A using about 2.7 – 3 watts of power.
So at 18watts, 6 Cree or Seul led's(p4's) will have the same output.
Now the P4's are rated at 90ish Lm at 350ma…. These 0stars are 75, that's about a 20% difference and if all thermal and electrical properties are the same this part should use between 20-25watts to make the 1K lumens. That works out at 40-50lm\w.
Someone more knowledgeable or with better internet search skills chime in and correct me
EDIT: its about 22watts by my numbers so thats 45lm\w