The kelvin (symbol: K) is a unit increment of temperature and is one of the seven SI base units. The Kelvin scale is a thermodynamic (absolute) temperature scale where absolute zero, the theoretical absence of all thermal energy, is zero (0 K).
6000k is 6000 degrees above absolute freezing. It also is used to measure the light spectrum. The surface of the sun is almost 6000k in heat, 5500 somthin. The sun is cooler at it's surface then it is in the outer edges, and hotter stil at the core. "At the Sun’s center, the temperature is 15.6 million degrees C (28.1 million degrees F), and the density is more than 13 times that of solid lead. This is hot and dense enough to make the nuclei fuse together. Outside the solar core, where the overlying weight and compression are less, the gas is cooler and thinner, and nuclear fusion cannot occur.
"
MOST cfls you come across will not list actual spectrum, rather, daylight, general purpose, or soft. Some do though.
This lamp is considered an LED, so very little heat, and spectrum will be able to be changed just like an LED. Give it some time, and they will get cheap.
Until now, HPS was the most efficient light source we have for the general population, producing more light per watt then anything, until now.
"Apparently, the company has created a micro-sized bulb that uses 250 watts of power, but outperforms a 400 watt HID. Gas inside the tiny bulb is electrified by a component called a puck, which heats the gas into plasma and produces light, allowing a sizable chunk of energy to become light rather than heat—thus the ultra-bright performance. Inside the mint-sized bulb the gas reaches 6000-degrees Kelvin—or about the surface temperature of the Sun—producing 140 lumens per watt, or roughly ten times that of a standard light bulb."
I have yet to see a 400 watt anything that will put out more then 120 lumens a watt, with a brand new ballast and expensive bulb that lasts 8 months. They may be out there, I just have not read them. These new bulbs will last like LEDS, with 1/2 the heat output or maybe even less.
I think they are pushing these into projection TV's and using the 3 color projection like we are used too. Won't be long until we have all spectrums available, people just have to buy a lot of projection TV's :-)
<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/MkKsf2bI4p0&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/MkKsf2bI4p0&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>
Of course, at 2-3k a pop, you can buy a LOT of 1000w hps's :-)
My point here is that this is hardly hype. This technology is what is next in line for us. High powered LEDs. Who could ask for anything more!!!! Won't it be nice to use fans for just circulation and the carbon filter. A minimal heat signature may just be worth a few Thousand to the right growers :-)