plasma emitters Why don't we have these

[crabbysd]

[URL][http://hivelighting.com/plasma-technology/full-spectrum-color//URL]

Full spectrum. DC. Dim able color
hive lighting if the link doesn't work.

[nanoreef1]

Typical plasma arc
Photo credit – Piccolo Namek

The biggest drawback to plasma lighting is the spectrum or Kelvin temperature.** Plasma lamps typically produce Kelvin temperatures in the range of 6,000K which is yellow in appearance.* This Kelvin temperature is also high in the yellow and green spectrum which promotes nuisance algae growth as well as cyanobacteria which can be difficult to control as well as suffocating the corals we keep.*



https://youtu.be/TJkOhw7pxNw

[d-man]

They had them about 4 yrs ago. Never really picked up. Leds came out about same time and were cheaper, easier to get a hold of and produced less heat.

[sushi]

[crabbysd]

Look at the specs. The one in the link is 2800 k to 7000 k. It draws 8 amps and I put my hand on after it burned for 2 hours. It's full spectrum unlike LEDs.
Seem to me the perfect In between for led and halide. Look at the specs.

[crabbysd]

Btw most colors are manipulated by dyes on the tubes, globes or an emitter so an easy fix.
Green doesnt contribute to most algal growth especally green algaes. They use the same spectrum for photot synthesis as corals, red and yellow on the otherhand, different story.

[Kris]

Wasp Plasma Par Kit with AC & DC Power Supply
$3,946.00 USD

That's a lot of money! The spectrum is kind of similar to sun light, but sadly low in the 450nm blue output where a lot of zoo's gather energy for growth / health.

These seem to be used for artificial lighting for photographic purposes. At 276 watts, I suspect that they are going to cost a bit more to run than LEDs?

[crabbysd]

It all gets cheaper eventually. And at 22000 lumens it crazy. Yea it's film stuff now. By changing thehosphors youcan pull the red green yellow down to a level refers will recognize. Leaving the the blue side alone will result in a higher kelvin temp. Basic color mixing.
Even a half blue Gel would do it. Leaving the rest of the spectrum like a t5 or Mh. Giving a natural spectral curve rather than trying to fill gaps like engineers have to with led of specific wavelength to simulate full spectrum.
Hopefully film and other industry adopts it more as it puts out more light than other led arrays of its size currently and pass the technology on to us.
I'd rather have one or two of these the size of a plate than two or four LEDs or a four foot t5.

[crabbysd]

[QUOTE=nanoreef1;967531]Typical plasma arc
Photo credit – Piccolo Namek

The biggest drawback to plasma lighting is the spectrum or Kelvin temperature.** Plasma lamps typically produce Kelvin temperatures in the range of 6,000K which is yellow in appearance.* This Kelvin temperature is also high in the yellow and green spectrum which promotes nuisance algae growth as well as cyanobacteria which can be difficult to control as well as suffocating the corals we keep.*


Btw 6500 k is the kelvin of natural sunlight. And contains the full spectrum of color. An artificial light source is manipulated to increase and decrease the spectrum provided as is the case in film lighting and reef lighting. Reef light t5 for instance is manufactured to have a higher blue spike giving the appearance of a higher kelvin. But is not truly full spectrum. A 6500k reef light would not work in photography even thoug it may say 6500k it has no green or red and a face would appear washed out with pale lips.

[Kris]

If only I were rich,...
I would really enjoy setting up a lab to research artificial lighting with the goal of tweaking spectral output and measuring any resulting changes in coral growth. Lots of tanks, lots of different sps & lps specimens, that would be fun!

The reef light use in photography analogy is interesting.

I think the high lumens, if in the wrong wavelength can produce light that is not useful (PAR) for coral growth, but I also believe that you cant have low lumens and get high par either?

Whatever, I am glad technology is improving our light options!

[crabbysd]

Yea tech now is really cool. Too bad i cant afford it.
In europe the are growing food under "PINK" light. Red 665 and blue 425. Theoretically we should grow coral close to the same way. Probably leaning mre twards purple by addin b more blue.



one of the coolest things about sdr is ive visited several members tanks and thier lighing scheme.


The most challenging. To our preconcieved notions is the nano lit by one phillips par 38. Xenia zoas gorgs palys all doing great.

[crabbysd]

Oh and the analogy is actually a fun fact.

[Kris]

Oh and the analogy is actually a fun fact.

Yes, I have green eyes, so in "reef lighting" I am (appear) blind?

The problem with "growth" lighting is that the corals usually look a lot "better" (to most people) under different artificial spectrum's. That is why I do like the new led's, and probably would like these plasma lights because you can adjust the spectrum back and forth between grow & view modes with the turn of a diode.