Dutch Scientists Working on an HPS Bulb with 20% Par Boost!

WestAussie

WestAussie

Active Member
Hmmf! That rep should've been mine for bringing up the Dual-Arcs! Haha! ;-)

I think it would be a great choice for veg as there will be that blue spectrum from the MH, which is the only really good thing MHs can offer. It would reduce stretching in prone cultivars I'm guessing. If you got an HPS and MH colour spectrum graff and then superimposed the two you'd see exactly where you're at.

Only issues for me would be temperature. MH always burn hotter than HPS. But whether a Dual Arc (say 600w HPS and 400w MH) burns hotter than a simple 1000w HPS is something I'd like to know.
 
Green Inferno

Green Inferno

Active Member
stelthy said:
Do you know if its better to use one of these Dual-Arc bulbs for Veg or Flowering ?? - STELTHY :leaf:
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It seems, though I could be wrong, it'd be good for veg and flower. The description says (the one I posted about) 300 watts HPS and 300 watts MH.
But it's only 68'000 lumens. That doesn't seem too high. 600 watt hps bulbs are usually over 90'000 lumens. Maybe with this bulb, there is more "usable"
light, and not as many lumens are needed, like LED. I'm gonna see if I can find anything online where someone actually used one, and what kind of
results they got.
 
zvuv

zvuv

Active Member
Green Inferno said:
It seems, though I could be wrong, it'd be good for veg and flower. The description says (the one I posted about) 300 watts HPS and 300 watts MH.
But it's only 68'000 lumens. That doesn't seem too high. 600 watt hps bulbs are usually over 90'000 lumens. Maybe with this bulb, there is more "usable"
light, and not as many lumens are needed, like LED. I'm gonna see if I can find anything online where someone actually used one, and what kind of
results they got.
Click to expand...
Well I may be wrong too, but I would think lumens is not the way to rate the effectiveness of a grow lamp. Lumens is a measure of how much of the light the human eye can use. In other words, how much of the light matches the eye's spectral response. An incandescent lamp might put out 100w but most of it is in the infrared and useless for human sight. A fluorescent lamp may put out a much smaller wattage but more of it in wavelengths suited to the eye, which is why cfls get rated as equivalent to much higher watt incandescents. If you are going to use an HPS in a street lamp then its lumens rating makes sense.

For growing plants the equivalent idea is the PAR rating.

http://www.sunmastergrowlamps.com/SunmasterPARWatts.html
 
woodsmaneh!

woodsmaneh!

Well-Known Member
I have been following some threads on another site and they have pics to show the difference in growth is significant. They used 1000w hps and in one corner used a dual arc and when you see the difference you would think it got some special grow juice. It's over at the farm just check out Jacks grow on the first page of the forum UnderCurrent. I am now running a 2 to 1 ratio of 1000w hps to mh. The dual arcs are expensive so I think I will just use digital 400 mh vs the 1000w I am using now.
 
stelthy

stelthy

Well-Known Member
woodsmaneh! said:
I have been following some threads on another site and they have pics to show the difference in growth is significant. They used 1000w hps and in one corner used a dual arc and when you see the difference you would think it got some special grow juice. It's over at the farm just check out Jacks grow on the first page of the forum UnderCurrent. I am now running a 2 to 1 ratio of 1000w hps to mh. The dual arcs are expensive so I think I will just use digital 400 mh vs the 1000w I am using now.
Click to expand...
Do you have a LINK to it ?? I'll throw some REP! your way in exchange :) - STELTHY :leaf:
 
stelthy

stelthy

Well-Known Member
Sunmaster Lamps are very similar to Grolux lamps in that they too have been specifically developed for indoor plant growing and are spectrum adjusted to perform well in both vegetative and flowering growth. They are a great option for anyone looking to experiment with different lamps as you may find that the exact spectrum offered by one lamp may suit your plants better than another.





I am not 100% sure, but I think 'Dual-Arc's' supersede the above bulb... Anyone who can offer up more info will be rewarded with great REP! - STELTHY :leaf:
 
P

phear

Active Member
i dont like the sunmaster lamps i have tried lucagrow, sunmaster, son t argo, and have to say the best of all of them is son t argo but these lumatec look good!
 
MIway

MIway

Active Member
You got me all excited Stelthy...???


All of the bulbs you have shown... the dual-arcs, the Lumatek, the Agro, etc... are the normal compliment of bulbs available now... and that have been available for a while. The 'digital' bulbs... just have reworked the fillament leads as to not burn out as quickly... nothing special for enhanced spectrum or increased lumen and/or par values... nothing over what already existed at least.


So, these guys at the hydro store told you about this? And they didn't tell you which company was making it/doing research?? That is what I expected when I started down your thread... :-(
 
stelthy

stelthy

Well-Known Member
MIway said:
You got me all excited Stelthy...???


All of the bulbs you have shown... the dual-arcs, the Lumatek, the Agro, etc... are the normal compliment of bulbs available now... and that have been available for a while. The 'digital' bulbs... just have reworked the fillament leads as to not burn out as quickly... nothing special for enhanced spectrum or increased lumen and/or par values... nothing over what already existed at least.


So, these guys at the hydro store told you about this? And they didn't tell you which company was making it/doing research?? That is what I expected when I started down your thread... :-(
Click to expand...
They did tell me but... I just forgot the time I got home... I'll be going back there tommoz I ll ask again nd try n get some LINKS etc etc... Are you certain the Lumateks above are not the ones with a 20% PAR increase ?? I am on a mission so rest assured I'll keep looking for the right ones and Wont stop until I've found them :) Ps/ what do you make of the Lumateks with increased PAR (above) ?? - STELTHY :leaf:
 
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