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Old 09-13-2005, 08:41 AM   #1 (permalink)
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Lighting upgrade

I am running a 400 HPS on a mover.
I am thinking of a 1000 HPS, not real interested in a 600 cost-wise.

What about a second light in the form of a 400 MH?
I would wonder about the effectiveness unless side by side using the mover?
I have read that a 400 HPS runs hotter than a 1000 HPS?

Maybe shut down the mover and have 2 400s?

Any thoughts?out

400 HPS is about 45,000 - 60,000 lumens
1000 HPS is about 130,000 - 145, 000 lumens

(600 HPS is about 85,000 - 95,000 lumens)
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Old 09-13-2005, 09:04 AM   #2 (permalink)
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K'ers need (IMO) to be used in conjunction with a light moving device.

Intensity vs coverage.
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Old 09-13-2005, 09:41 AM   #3 (permalink)
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sounds like herbology may turn into Dendrology.
I should look into electrical usage. Not to mention heat.
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Old 09-13-2005, 12:45 PM   #4 (permalink)
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kwatts put off a lot of heat if hung straightaway.. i can't speak for moving applications. but i mean a LOT. with no scientific evidence to back this up, i would estimate that kwatts put of 20-30% more heat than a 400. i can't speak for the ballast heat.
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Old 09-13-2005, 12:47 PM   #5 (permalink)
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Hmmm, that alone makes a single light more effective then?
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Old 09-13-2005, 12:59 PM   #6 (permalink)
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ive used 2 400s side by side, one MH and one HPS, and was fairly happy with the results. what i've considered in the past, owning a single 400 at the moment, was to acquire a 600 and make a flowering chamber for progressive clone-flowering, utilizing the 400 for the plants just entering flowering and the 600 next to it finishing off some big gals.

always had it set up in a timetable, something like sectioning the floorplan into 3 sectors, a long rectangle like shape, and moving sets of clones up the chain every 3 weeks. this accounted for giving the initial clones a 3week period to root and veg before entering the chamber.

so... 4 total sets of plants at distinct age levels. every 3 weeks, move them along.

V -> F1 -> F2 -> F3 -> Harvest. the 400-600 transistion would let you slowly get them used to increased light, and not waste wattage on plants just barely preflowering..

so maybe this would be a thought?



really consider a 6 over a Kwatt. cost aside, you can yield nearly as much in a stationary setup, and you have far less to deal with related to the heat from the kwatt.
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Old 09-13-2005, 01:12 PM   #7 (permalink)
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I run a mover, and my room would be too long for a single light I think?

Lots of things to consider for sure
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Old 09-14-2005, 01:26 PM   #8 (permalink)
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Well, I have been thinking of the 1k for sheer power, but I have to tell you...
the 600 at only 5.0-5.3 amps on 120 and double the lumens of the 400 I have is looking pretty good.

The 1k would run about 8.3 amps if I remember correctly.
2/3s of a 15 amp breaker.
That would allow the use of the light, a fan and the mover on the one curcuit.

The 600 would allow the light, the mover, the fan and the exhaust on one breaker.

Simple matters have more to them than ya think hey?


Electrical Usage: To figure how much amperage your ballast is using,
simply use the following formula: Wattage ¸ Voltage = Amperage.
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