Light Output of 135,000 lumens +

[tobjectpascal]

The first prototype lamps were 5.9 kW units, with a system efficiency of 80 lumens per watt. The first production models were 1.4 kW with an output of 135,000 lumens. Later models were able to eliminate the cooling fan and improve efficiency to more than 100 lumens/watt.

for more check out the link below.


http://www.sulphurplasma.com/sulphur-plasma.htm

 

[IMSabbel]

Yup.

Sulfur-plasma lights are really neat. I liked them since the day i first saw them, 15 years or so ago.

But sadly they have one drawback: they need their energy in form of microwaves, which adds a whole lote to system complexity...

 

[2xTrinity]

Yup.

Sulfur-plasma lights are really neat. I liked them since the day i first saw them, 15 years or so ago.

But sadly they have one drawback: they need their energy in form of microwaves, which adds a whole lote to system complexity...

I can think of a lot more drawbacks than that:

• a 135000 lumen point-source is useless without an array of reflectors and diffusers, which drops net efficiency of the system by almost half

• Spectrum is strongly green-tinted, creating a pleasant white balance requires either filtering (more efficiency loss), or somehow blending additional red and blue light into the mix (even more complexity)

• Single point of failure. With hundreds of fluorescent tubes, it's not a big deal if a few go out. If that one lamp fails for some reason however, your entire factory is dark, unless you install two redundant systems.

By the time all is said and done, wallplug efficiency is under 40 lumens/watt for the sulfur system. Comparable T5 fluorescent fixtures are TWICE as efficient, once you take into account ballast and fixture losses.

 

[snarfer]

Perhaps for a factory that would be overly complicated. But then again there are folks like me who think 135,000 lumens is just a little light. We even rent monstrosities like this:

http://www.luminyscorp.com/pdf/softsun/SoftSun100K.pdf

 

[ambientmind]

Perhaps for a factory that would be overly complicated. But then again there are folks like me who think 135,000 lumens is just a little light. We even rent monstrosities like this:

http://www.luminyscorp.com/pdf/softsun/SoftSun100K.pdf

what in the world would you use that for?! i want one!

 

[snarfer]

For making movies of course. The SoftSun isn't for sale, just an outrageously expensive daily rental. I've only worked with them a couple times, They're a big heavy pain in the butt. And they've got a power supply the size of a small shed.

Well back to the topic. 135,000 lumens is pretty average for a studio light, comparable to a 2.5 kilowatt HMI. Having lights like these could save us in Hollywood a lot of power.