Lumatek High PAR Bulbs

[Kcar]

Anyone using them yet? I see the 400 and 600's are available
on several different websites. Not sure about the 1000's

Here's one
http://www.horticulturesource.com/

 

[secondtry]

Hi,

PAR is not a measure of light irradiance, it is misinformation spread by SunMaster and now Lumatek, PAR is only the range of light which most efficiently drive photosynthesis, i.e., 400-700 nm. What they should rate it by is PPFD; but what SunMaster and Lumatek(?) incorrectly write as "PAR irradiance" is merely watt/^2 and that is neither valid nor accurately convertible to PPFD (photons in PAR per meter^2 per second).

Please see this post of mine for more info: https://www.icmag.com/ic/showpost.php?p=3328715&postcount=3

The point I want to make is I don't trust lamp makers who rate by PAR, that is totally wrong for them to do so, and to me it means they don't know much about horticulture or they are counting on us not knowing much, its a sales pitch and it's BS.

HTH

I for one use the Hortilux Super HPS, but the Plantastar is good too.

 

[Kcar]

PAR is normally quantified as µmol photons/m2/second, which is a measure of the photosynthetic photon flux (area) density, or PPFD. PAR can also be expressed in W/m2. Because photosynthesis is a quantum process PPFD is generally used by plant biologists, but W/m2 measurements are important in energy balance considerations for photosynthetic organisms.

Also, I'm not asking about LED's. And using a bulb that produces lots of light my plants can use is important to me and many others.

 

[secondtry]

PAR is normally quantified as µmol photons/m2/second,

Where did you copy past that from? I know i have read it somewhere, anyway, that is not correct, it's a common misunderstanding even used by SunMaster.

PAR is not quantified at all, PAR is merely a way to qualify radiation plants use to drive photosynthesis with the most efficiency, ala "Photosynthetically Active Radiation", it is the range of 400-700nm. PPFD is umol/m^2/s and is measured with a quantum sensor, they are not the same thing. PPFD is a quantification of the photons in PAR per meter squared per second. While so-called "PAR watts" is a loosely used terms for watt/m^2 from a "pyranometer".

PAR can also be expressed in W/m2.

Nope. w/m^2 doesn't really have an official title, but "PAR watts" is often used by SunMaster, etc.

Because photosynthesis is a quantum process PPFD is generally used by plant biologists, but W/m2 measurements are important in energy balance considerations for photosynthetic organisms.

PPFD is the only quantitation used for photosynthetic organisms, not PAR watts as w/m^2; no organism uses watts, they all use photons, ala PPFD. THis is the same for plants, and bacteria like PnSB, etc.

-----------------------------------------------------------

Those two graphs ^^^ are wrong, it's also a common misunderstanding. That is the so-called absorption spectra of chlorophyll A/B and carotenoids, but that was found in vitro with an extract of a leaf inside a "spectrophotometer", and it's not at all accurate to what plants use to drive Pn (rate of photosynthesis). You/we should be using the "Photosynthesis Action Spectra" (PAS) as created by K.McCree in the early 1970's, that is the accurate response of in vivo leafs to photons in PAR (i.e., PPFD), but McCree used monochromatic LEDs to make his PAS and that is not accurate because green light offers more photosynthesis then red light and more than blue light too. His PAS was updated last year to reflect the synergy of the whole PAR range not via. monochromatic lighting. See the second link in my sig for LOTS of info on this and a great explanation of why the old biology and botany books are wrong, as is those two graphs you uploaded. Ideally a great lamp would match the updated PAS which would offer a lot of green, red and blue, for example the SPD of the Hortilux Blue is what we want.

Here is what the PAS looks like vs. the incorrect chlorophyll A/B absorption spectra, and the PAS very similar for all higher plants, cannabis included. PAS is also called QY (Quantum Yield) curve:

And here is another image of PAS, i.e., QY:

Also, I'm not asking about LED's. And using a bulb that produces lots of light my plants can use is important to me and many others.

I know your not, I think maybe you should read some of my posting, I know the whole field very, very well. What I am writing is correct, trust me. I too want high "irradiance" from my lamps, that is why for cannabis to grow ideally we want at least 1,000 PPFD, but ideally 1,300-1,500 PPFD; this info is from 4 different studies on cannabis. This is all correct.

My point still stands, any lamp makers who rates the lamps by PAR irradiance knows nothing of what they should because PAR watts (as is incorrectly referred to as PAR) is watt/m^2 and that is wrong to use for us and by them. So, I would still say stay far away from manufactures who rate by PAR irradiance, because they mean watt/m^2. The thing you need to know if PPFD is increased by moving the lamp closer to the canopy, but using a digital ballast and a good reflector, thus a "high PAR" lamp means nothing because there is no distance factor. I could use a "low PAR" lamp and simply place it closer to the canopy to make it a "high PAR" lamps in terms of watt/m^2.

My suggestions of those two lamps still stands too, for high irradiance and good SPD I use the Hortilux Super HPS, but I am testing the Horitlux Blue 1000w MH soon with a quantum sensor and if it emits 1,000 PPFD without heating up the canopy leaf too much it will prove to be the best HID lamp in terms of SPD.

Here is the SPD of the Horitulx Blue, note that it may not emit enough PPFD at reasonable distance, that is why I must test it:

(note that the line in the background is the PAS)

HTH

 

[Kcar]

You Win! And your right. But my ballast is 600w and can only use 600w bulbs.
I would like to know that I'm using the one that's the most beneficial to my
plants at a given distance. EYE Horti's are known have this "Factor" and I was wondering if
these bulbs do too. And I think they're the first lamps made specifically for digis, too.

lol Happy Friday!

 

[secondtry]

Hey,

Thanks, . The info about green photons is not known by too many people, I am happy to help you .

I use the Hortilux Super HPS 600w now. According to work done by knna the Plantastar 600w HPS is also a great choice. I would use either or them. The Ushrio (sp?) that Lazyman uses is supposed to be good too; with the 600w Horti Super HPS and a digital ballast and good reflector I yield about 1.5-2 lbs in a 3x3x3 "whole canopy" using a heavy LUI cut (with Co2 at 1,000 ppm and other factos 'on point' like VPD).

The only lamp I would never recommend is anything from SunPluse; but I really do want "pulse-start" lamps, it's too bad they are the only ones who make them in HPS...

GL and HTH

 

[Avenger]

but I really do want "pulse-start" lamps, it's too bad they are the only ones who make them in HPS...

All HPS lamps are pulse start.

I think what you are really wanting is HPS that has been built to withstand the accoustic resonance from the high frequency nonsinusoidal waveform electronic ballasts,that can be problematic for the arc tube.

Which is one of the selling points of the Lumatek lamps that Kcar linked to.

Sorry I have no personal experience with these lamps.

 

[secondtry]

Hey Avenger,

Are you sure about that? AFAIK, they were/are almost all probe-start. WHile CMH and lots of MH are pulse-start; tho I could be wrong, I haven't looked into it in a couple of years.

Thanks.

P.S. I PM you my email adddress, I explined why in the PM.

 

[Avenger]

Yes, I am certain.


cheers

 

[Kcar]

Ordered one today for a try-out.

 

[krunchbubble]

Hey,

Thanks, . The info about green photons is not known by too many people, I am happy to help you .

I use the Hortilux Super HPS 600w now. According to work done by knna the Plantastar 600w HPS is also a great choice. I would use either or them. The Ushrio (sp?) that Lazyman uses is supposed to be good too; with the 600w Horti Super HPS and a digital ballast and good reflector I yield about 1.5-2 lbs in a 3x3x3 "whole canopy" using a heavy LUI cut (with Co2 at 1,000 ppm and other factos 'on point' like VPD).

The only lamp I would never recommend is anything from SunPluse; but I really do want "pulse-start" lamps, it's too bad they are the only ones who make them in HPS...

GL and HTH

why not sunpulse? heath robinson uses the 600 watt and yields 42+ ounces a harvest. no one can touch that........

 

[Kcar]

Congrats on the 1000 posts, Krunchy!
Though I'm sure you couldn't give a rats ass...

 

[robotwithdreams]

* Lumatek Note: warranty is void if used in super Lumen Mode on 1000 watt Lumatek dimmable ballast / Use 750 watt SP Lamps with LK 600 watt ballast with super lumen mode for warranty to be applicable / Sunpulse is working on development of lamp to be used in super lumen mode on 1000 W systems. WARNING: Lamp must be started in full-power mode and must be operated in that mode for a minimum of fifteen minutes prior to reduced-power operation

 

[dlx420]

* Lumatek Note: warranty is void if used in super Lumen Mode on 1000 watt Lumatek dimmable ballast / Use 750 watt SP Lamps with LK 600 watt ballast with super lumen mode for warranty to be applicable / Sunpulse is working on development of lamp to be used in super lumen mode on 1000 W systems. WARNING: Lamp must be started in full-power mode and must be operated in that mode for a minimum of fifteen minutes prior to reduced-power operation

I just googled the above information. It doesn't apply to Lumatek bulbs. It's from the Sun Pulse website and is in regards to their bulbs in a Lumatek ballast. Read it here: http://www.sunpulselamps.com/index.php?option=com_content&view=article&id=3&Itemid=7

So, then I called up Victor at Lumatek, he said that the above info isn't true in regards to any bulb. You can start a 1000w bulb at the 600w setting, or the 750w setting, no problem. Although he said that running a 600w bulb at the 600w setting is much better for lumens and color spectrum.

As for using a 750w bulb at the 600w super lumens setting, he laughed. Apparently 600w super lumens is within the tolerance for any 600w bulb.

 

[Auto Pimpn]

check this out

http://www.lumatek.co.uk/lumatekhighparlamp.htm

 

[The Wang]

.

 

[Centrum]

why not sunpulse? heath robinson uses the 600 watt and yields 42+ ounces a harvest. no one can touch that........

Dude ill bet lots of people touch it ! Probably even smoke it too!





Heath is a great man i still have his c4 x Black russian cross going since forever!


So are you guys saying par watts arent better ?
If so dont let led girl see this thread!

 

[smoke1sun]

Dude ill bet lots of people touch it ! Probably even smoke it too!





Heath is a great man i still have his c4 x Black russian cross going since forever!


So are you guys saying par watts arent better ?
If so dont let led girl see this thread!

Got some links? I'd be interested in reading the threads.

 

[Kcar]

What the hell happened to my thread?

 

[Stond_Face]

sorry