herbivious2008
Active Member
hey every1 .. i was just wonderin how would it affect the plant if i used 400 HPS through out the whole grow?
thanx
thanx
Using HPS During Veg Stage
- Thread starter herbivious2008
- Start date
kathleenbilly
Well-Known Member
Well if your going to use your 400w for vegging make sure you know what your doing,
I vegged under my 400w i dryed out the tops of the plants they were crispy trying out new tanks it was not a good idea for me
I presume if your up the speed on the rest of your grow just make sure you keep that light at least 2 foot away from your baby plants as they start off in veg you may find even higher just keep an eye on it.
I vegged under my 400w i dryed out the tops of the plants they were crispy trying out new tanks it was not a good idea for me
I presume if your up the speed on the rest of your grow just make sure you keep that light at least 2 foot away from your baby plants as they start off in veg you may find even higher just keep an eye on it.
herbivious2008
Active Member
hi people .. thanks for all the replies .. hope all is well .. i have another question.. would a 400 watts hps be enough to flower 6 plants that have been LST???
thanks,
herbivious .. grow herb ..eat herb .. toke herb!!! peace
thanks,
herbivious .. grow herb ..eat herb .. toke herb!!! peace
Blueberry2008
Well-Known Member
as long as it fits within a 4x4 area you should be alright..
Jakebakingcake
Chillaxn'
ahh i say 4 plants under a 400w is optimal. but you can do six much more than that and you would be pushing it!!
h20greenmachine
Active Member
weather you have 4 plants or 6 plants, or any other amount under a 400w hps your going to get relatively the same amount of harvest. yield is directly related to the watt's you put into it. The more light you have, the more yield you will have
mygirls
Medical Marijuana (MOD)
you will be ok but M H is better for veg. you can run a M H bulb in a H P S ballast. it does not have to be a conversion bulb either.... trust me..
brinkclan
Member
REAAALLLLYYY NOW? Well I guess the worst that can happen is it'll burn out right? I wonder if a non conversion MH will burn out faster than a conversion MH perhaps? Will definitely try.... so what do you think about the height I put my 400 W HPS from my plants? It doesn't get overly hot and nothing is burning, just hoping it is getting enough juice, it's the 30% extra blue kind. Will a regular ass MH be as good as that for veggin?
ALSO, I need an expert opinion on this one... let's say I have people over and I really just need to put my closet door back on. Will one 42W daylight CFL provide enough light (lets say I do it for a day) so that they won't go into flowering? I heard that even the smallest amount of light will prevent flowering. I obviously can't leave my 400W on in a small space with no ventilation. Expert opinions!!
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Grissom1988
Member
Basically you just need to get legalized! I live in southern California and was able to buy a medicinal marijuana license for a full year. Every year I go back to the doc. and pay another $150 for the next year. Now that you are legal you can spend some cash and invest in a room where you don't have to fuck around. There is a right way and a wrong way to everything. Personally, I've always used a 400w H P S light for the veg/flower stages. Just keep an eye on them and make sure you have the bulb about 18 inches away from the tops to start out, then move it as needed. If you notice any stretching, then the light is too far away, but if you notice burning, then it's too close.. When you figure out the H P S technique you are good to go! Mainly make sure you have a perfect environment for your plants, try not moving them if possible. Remember it is a weed.. keep it simple!
bbailey1808
Member
i keep my 400 watt hps around 12 inches away from tops and there isnt any burning.
"Works fine. MH is best for veg, but HPS is damn good too." Exactly right.
I have an 8 x 8 room with a 1000W. set-up and I power through 4 or 5 grows a year. I used to
run the MH ballast and bulb while vegging, then switching ballast and bulb (a chore indeed) to
HPS for flowering. I worried that the MH set-up was a lot hotter than the HPS so I've been running the
flowering set-up through vegging and flowering. No fall off in size that I can see.
BigSteve.
I have an 8 x 8 room with a 1000W. set-up and I power through 4 or 5 grows a year. I used to
run the MH ballast and bulb while vegging, then switching ballast and bulb (a chore indeed) to
HPS for flowering. I worried that the MH set-up was a lot hotter than the HPS so I've been running the
flowering set-up through vegging and flowering. No fall off in size that I can see.
BigSteve.
Shadeslay
Active Member
My current grow I used a 400w HPS the entire grow, you do see some stretching. So you may want to play with the light/plants and be sure you get them as close as possible to avoid any excess stretching, but the results are decent.
Here's a Super Sour OG, a few weeks from harvest.
Here's a Super Sour OG, a few weeks from harvest.
I have a 6'x7' with 1000 w hps set up i am in week 1 of vegging and they look healthy as can be but i have fluorescent bulbs accenting the light. my hps is about 2.5' away from tops and no bad results yet. my friend said that i should use a lower watt bulb for vegging 1/2 the wattage or less than what i will flower with? anyone have any experience in this situation?
GanjaGod420000
Well-Known Member
As long as you can keep a close eye on canopy temps, and control the heat and the distances of your plant tops from the lamps, you can blast them with either/or, you cannot go wrong during veg, they do NEED HPS during flowering, tho. Although MH will flower them out beautifully, it will leave ALOT to be desired on the smoking-end of it, and on the potency-side of things... That is why I always use BOTH forms during all phases... I have a 4' X 2' closet with three 250 W HPS, at just about all all times, except during veg, when I have only two of those HPS's-and two other MH's, one a 250W and the other, a 400W, and I go from having 1-400W MH in with the 3-250W HPS's to having just 1-250W MH in with them to just the HPS's alone, at the early stages of flowering, and I ramp up the lumens, in reverse of how I listed those combos as flowering begins, then in veg, I always have my 400W MH AND my 250W MH burning with 2-250W HPS, so, mine is an ever-changing combo of what I believe the plants crave and need more, at the right times of their life cycles... And although it took me twenty-plus tries at this current method, I believe with certainty that this is ideal for their spectrum balance, so they all grow as massively and rapidly as they can, with such short inter-nodal length, and such rapid formations of sub-branching, which equates into massive yields that are on average, .91grams/watt... I also use CO2 and decent fans for ventilation and exercise... and good, all-natural, organic supplements and nutes.... I guess that when you are an industrial electrician and f with these lights and controls for them all day at work, it's not too much of a task to be able to do it blind-folded at home, for fun-and weed!!!
phillipchristian
New Member
A 400w light has an optimal footprint of 3x3 when at the correct distance of 8" from the canopy. That means that anything outside of that footprint is not receiving enough lumens. Not sure how you would fit 6 plants under that but they would have to be kept on the small side. MH is always better for veg but HPS works fine. There is not added risk; just less vegetative grow and a slightly longer veg time. If someone burnt their plants in veg with an HPS is was not because of the lights spectrum. You can use a CFL to keep your plants in veg but if you 4 or 6 of them then you might want to get a 1 or 2 more of those 42w lights or a 125w CFL. You need to keep them all lite.
knotmyself
Member
I was thinking of trying my 600 watt HPS as a Veg for my next string, only going to be growing 6 in a 6x6x8... I only have a 400 watt MH at the moment... would I be better off vegging with the MH @ 400 Watts, or the HPS @ 600 watts. No I cant use both at the same time unfortunatly. Thanks!