Hi could someone answer this for me.
I have a 2 ft x 2 ft tent.
I have both a dimmable 600w hps and a phlizon 2022 (100-150w??).
Take energy costs away, which would get me the best results? . The hps does give me some needed heat.
What configuration, what % power and distance from plants. Any thoughts welcome
Thanks
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Run the led in veg . . . if you can handle the heat run the hps in flower. I know you shouldnāt dim hps more than 50% . . . Iāve never ran one less than 100%. Add a 3x3 flower room and run both
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Space restraints unfortunately but I did a day 21 defoliation and made some clones so thinking of using led for those but not if it was the best option. I think the hps maybe with clones in mind. How much should I dim it by. There is 250w/400w/600w/660w. In a 2x2. Say 400?? Higher lower?
400 should be plenty . . . I wouldnāt go lower. Decent hps bulbs are expensive and donāt last long enough anyway, dimming too much is supposed to shorten life even more. How many hours does your current bulb have on it?
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Not sure. Prob one grow. I had loads of bulbs as Iāve downscale massively (from a 2.4m2 to a 0.7m2) but not sure where they Al are.
Thanks for your advice Iām gonna use the hps at 400 and put the Led over the clones. If the bulb goes ill put led in til I get a new bulb. There is a grow shop within a mile of my home
You should be set then . . . bulbs generally last 3-4 grows at least, and most donāt blow out, just the drop off in output by 3000-5000 hours becomes enough to warrant bulb replacement. Current bulb technology may be better . . . Iām not up to date on HID lighting these days.
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With hps it needs to be 4 foot away from ur plants I canāt use one my grow is small but led like u have are better than.hps get u same yeilds cost.u way way less in electric I use bestva bp1000/from the wall it pulls 125watt but it.pegs light letter out at 3feet away I really like.led.
Maybe 4-5ā for seedlings. From personal experience the best hanging height for a 600w HPS is 18-24" . . . however, Shane with Migro Lighting tested a 600w HPS in an Adjusta Wing reflector and says that 16" is best for PAR delivery on canopy vs leaf temps.
Ive started at 250w to get em used to maybe more and temps/humidity.
At that wattage Iām getting 29-32Ā°c lights on and 20-24 lights out. Humidity is 32-40 on and 48-52 off. In my 2x2 I have a couple of cheap amazon co2 bags that prob arenāt contributing much. Iām planning on going up maybe to 400 shortly to test at least.
What distance should I have between girls and glow? With running at 250w, and 400w too. Thanks
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Iv never uses hps just led just what I read up on.I.would like to.try.hps.tho
Best advice I can give to actually dial in the height is the photone app . . . let the lamp get hot and take readings at different heights to get proper DLI. Couple of $ to unlock HPS light source on the App but itās worth it.
Stick with LED if you can . . . they are more efficient and last longer. Unless you need the heat . . . HID lamps run hot. I donāt know the tech terms but from what I understand LED turns more of the electricity used into light, less into heat than HID does . . . efficiency. Correct me if Iām wrong about that.
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I agree led is the way to go I.love them
LED in flower especially.
Lower temperature is required to retain terpenesā¦
77ā°-78ā° max.
SpiderFarmer has lights with detachable balast.
The heat can be outside the tent for the most part.
Co2 allows you to push to 2200 PPFD at 88ā°f
They grow fast then friend.
Good luck 
TeamFatOnes
Misled you
2200 PPFD in flower at 78ā°
1500-1700 PPFD (strains) at 88ā°+ in vegg
TeamFatOnes Out