Specs And Comparisons For 600w HPS Bulbs

[email protected] said:
hey sweet dude its not letting me edit my original post but +rep for that. i just wish you would of told me a week ago. i just ordered two
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My bad, I just barely got mines up this morning, so I don't know how much info I could've provided. Thx for the rep...Im still new on RIU so every little bit counts.
 
Thanks for this thread CoreyB. You've put in alot of work.

Im a user of Ushio bulbs, and they are quality bulbs. I actually need to buy another 600w bulb, and I think Ill pick up the Lumatek one and compare it to my unused Ushio bulbs.

Ill use my F.C. meter to measure the output, and then convert it to PAR, and will post back with the results for anyone interested.

For those who have a F.C. meter they can do the same and post results for their bulbs here if thats fine with OP.

Check out Measuring Daily Light Integral in a Greenhouse to learn how.
 
thats cool and thanks for noticing it did take me a LOT of time to get all this info together.

and what is the formula to convert foot candles to par?

anyway +rep to you for contributing to my thread

thanks
 
[email protected] said:
thats cool and thanks for noticing it did take me a LOT of time to get all this info together.

and what is the formula to convert foot candles to par?

anyway +rep to you for contributing to my thread

thanks
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It'd take me too long to post how to do it, but the pdf I linked to will discuss it. Its a great read, and worth one time.
 
from what I see, to get from foot candles to micromols (umols/m2/s) you multiply:

HPS: foot candles by 0.13
MH: foot candles by 0.15

from this and calculations of lumens to foot candles, there seems to be a direct relationship between lumens and photons. but from reading I have done, there is variations between par and lumens.

interesting
 
Quick question on the Lumitek High Par bulb. It clearly states in the description that it was designed for the lumitek digi ballast, but later says that it works great in magnetic and digital ballasts(not lumitek specific). So is there anything to be gained with pairing this with a lumitek or is it simply trying to link sales?
 
I noticed that if I run my lumatek bulb on my lumatek ballast, on the superlumens setting, it gives out an almost white light. I'm not too sure if you're gonna get that "not so yellow" kight on a magnetic ballast. Just my 2Cents...
 
Is that your first hps bulb in that setup? or do you have another bulb to compare the grow with? the specs(marketing) sounds amazing, but im curious if they actually live up. i mean 1000 par is a huge improvement, i would have to imagine the growth would be immense with that.
 
i really need to edit the first post but it will not let me the lumatek "PAR wats" are not actually watts they are umol/s witch have nothing to do with watts so there comparison there is null
 
Good info have you ever tried to find anything on LED lumens output or compartive anyway. That would be so sweet as I cannot find any info on LED lumen output and i just purchased 2 Kessil h150 LED magenta lights.

Thanks in advance :D
 
i dont know, i try to stay out of the whole led thing. i personally think they are way to expensive and really a waste of money. I know there are a shit load of people who jock LED's and im not knocking them but y spend three to four times as much when an hps system will do the same job.

i know they put out less heat and take less electricity but for me thats not a problem so i see no reason to buy one. maybe when the technology improves and the price goes way way down i might consider it but for now i say led's are a huge waste of money
 
CoreyB, Ive got an update for you. I just tested out my new Ushio 600w Super Hps-Opti Red in my Super Sun II. Results were really impressive.

Average F.C. over a 3 x 3 foot grid was 3778 F.C. at 18 inches above the grid.

Average F.C. over the same 3 x 3 foot grid at 21 inches was 3530.

At 18 inches directly under the bulb was 7300 F.C., which is 949 (μmol.m-2.s-1)

At 21 inches in same spot, the maximum reading was 6120 F.C., which is 795 (μmol.m-2.s-1)

Ive ordered the Lumatek bulb tonight, and will test it out as soon as it arrives and post an update.
 
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