I am still not understanding where you are seeing 570,000 lumens, I read that no where in any of what you sent and I read through it all... I would also say to watch out for information coming from from sources with a vested interest, but as I said if you look at the actual numbers and information, it is not really reading as you are presenting it...
In the second link, growing edge 96, which i am thinking is from 1996 and the other from 1994, and remember this is when the technology was fresh in the mid 90's and still trying to be marketed, but even in that it states very clearly that the total luminous flux is at 150,000 lumens, which means that at its highest point it puts out 150,000 lumens, not 570,000 which would be crazy... It also states as I said that it puts out mean around 100 lumens per watt.
Now here is the real info from the people who are selling this technology now, in 2009
hxxp://www.nlites.co.uk/sulphur-plasma-light.htm
But here is a preview:
System Frequency:
250 kHz
Lamp Power: 1000 Watt
System Power: 1320 Watts
Cap: Quartz rod 4mm dia.
Bulb Finish: Clear
Bulb Speed to Generate Light: > 300 rpm
Bulb Type & Size:
quartz sphere 36mm dia.
> 32mm internal diameter
Overall Length:
150 mm
Atmosphere: Sulphur / CaBr2 & Argon
Luminous Flux: > 150 000 Lm @ 100 hours
Luminous Efficacy: > 100 Lm/W system efficiency Colour Temperature: White 6000K / Red (CaBr2) 3500K
Burning Position: Universal with bulb rotation about axis of quartz rod
Rated Life: > 60 000 Hours (lamp)
> 30 ,000 Hours (magnetron)
> 40 000 Hours (power supply)
Warm Up Time: 20 seconds
Re-strike Time: 5 minutes
Lamp Output Depreciation : < 1% during 1 x 20 hrs < 10% during Rated Life
Also please look at the actual spectural chart because the OLDER ones look pretty flawed...
NOw i am not going to argue about this any longer, but you are going to have to once again show me where you are getting this crazy number of 570,000 lumens, I am not quite sure you are understanding how large that number is...
Also when it comes to HPS and MH, the majority of the light is totally usuable, where as the Sulfur lighting still spits out the majority of green light