HPS on Vegging?

i know its not as good as MH for vegging, but i told my local i needed a 600w light sytem and didnt mention it was for vegging, nor did i look at any of the boxes till i got home. so... should i take it back and get the MH or am i ok running the HPS for vegging?

ur ok, its what im running since my mh pooped out on me seems to be doing fine just keep it on 24/7 until you flower.

but with the Mh i could run it at 18/6 and keep my bills down. would i have to run it 24/0?

for best results, but you can run it at 18/4 if you want. shouldnt be to big of a difference.

newb101 said:

for best results, but you can run it at 18/4 if you want. shouldnt be to big of a difference.

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My 600 watt HPS has out performed any light i've ever used before for either veg or flowering, Enfact my 600 HPS has done better for veg than my 800 watt MH.

MH are truely inefficient lights that lose a lot of lumens and extra electricity... for my money its HPS all the way except for cloning and seelings then I use a 6 13 watt CFLS and they do a wonder.

I have used all the lights that are on sale now a days and no light can compete with a h.p.s these lights are the best all round lights with out a dought.I use a h.p.s light for all my work with cannabis and since swopping over some time ago from h.i.d my yeild has increased by about 50%.I am not saying that h.i.d lights are shyt but i would not bother swopping them back when the h.p.s will produce that bit more has long has you keep the lights close to the top of the cannapy of the plants.Get a couple of fans blowing cold air onto the light this will cool the light down this inturn will enable you to get the light has close to the top of the plants has possible with out burning them.But i would also get a good exaust fan to pull the stagnent air out of the room.Once you have all of these things then you are up and running and has long has you keep a check on the equipment ie oiling the fans every so often the grow room should last a good few years.All though i always change the 600 hps bulb every year,by doing this the light will run more econo friendly and will will give the plants the full lumans that they need.

guess ill give it a shot, thanks for the responses

Running less than 24/7 saves you a few pennies, not running it at all saves you all the pennies. The plant will produce more yield if run 24/7.

tyke1973 said:

I use a h.p.s light for all my work with cannabis and since swopping over some time ago from h.i.d my yeild has increased by about 50%.I am not saying that h.i.d lights are shyt but i would not bother swopping them back

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H.I.D = high intensity discharge
so u switched from ??? to HPS ??
MH and HPS are both HID ..... so u musta switched from floro's or cfl's ?
Either way i have grown with all combo's of lights and u dont need BUT U WANT extra blue in the veg room. 2700k (hps) does not contain any blue at all. Thats why we switch bulbs for flower and veg. Its not because we have to, its just better to have blue in the veg room and reds/yellows in the bloom room. ............IF u are broke then stick with the hps but if u have a few extra bucks then get a MH conversion bulb that will go right in your hps ballast. OR just get a whole other ballast.........
(hell , i dont even like pure hps for flower, thats just an opinion though)
i have used hps and mh through the entire cycle (seperatly) .... so i have been down this road before.
AS for the 24/7 vs. 18/6 ..... it does NOT matter , weed has been proven to "grow" in 24 hour light BUT i dont think its better.....i dont think you will ever find the PROOF that 24 is better then 18 OR vice verca ....... it all in how u and your plants get along. I personally use 24/7 but i WILL not say its better , because i dont think i have even tried 18/6 before as with most growers .... if somethin works then stick to it

i just thought that i would mention as i don't think anyone else has, that you can also get a bulb for the hps that has an increased spectrum that delivers a broader spectrum of light and decreases the need to switch from mh to hps for veg/ flowering stages.. i am too burnt and can not remember the name of the company that makes them.. maybe agro sun.. but don't quote me on that... all you have to do is look for the description, and if it says like 280 watt instead of 250, and like 430 instead of 400 watts, then these are the bulbs.. i have heard good things about them.. also. i am pretty sure that if your light has a digital ballast then you can just go ahead and switch from mh/hps bulbs using the same ballast, no problem..
hope this helps you out some.. i am sure you will love your new lamp and increased yields..

I read some article about the 24/7 ordeal, and the saving of a few pennies, 18/6, etc. However, like Wy-Tee said, it's all about you & your plant's relationship. My personal theory is to max the entire growing process, plant & root system. With this max growth rate, new cells are steadly being formed daily. Should Aleo Vera be used, which regenerates & speeds up the healing process in damaged tissue, like when the wind blow, aloe should speed up the natural process of the new cells being formed. This "MAY" cause up to a 25% increase in all around growth rate. To help compensate the fast pace of the Veg., I use liquid seaweed for the roots, which is a natural rooting hormone, plus a lot of other shit. Just my theory.

Hey folks, got a question. One Guy was saying that one ballast can be used for two lights, IE; one ballast for one 1,000 watt ligh, but add a 2ND 1,000 watt, tie in to it. Anybody know the yes or no aspect of this question. I've not a clue.

South Texas said:

Hey folks, got a question. One Guy was saying that one ballast can be used for two lights, IE; one ballast for one 1,000 watt ligh, but add a 2ND 1,000 watt, tie in to it. Anybody know the yes or no aspect of this question. I've not a clue.

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yes that is very do-able. it is very simple i dont know why i never thought of it. i think there are other ways but the way i am talkin requires 2 flower rooms (or one cut in half) 12 hours on one side then 12 hours on the other side with one ballast and 2 bulbs with NO bad consequences. (i am an electrician) its no big deal u are just running one single ballast 24/7 ..........

okay sorry 2 ask a ? in ya tread but kinda got the same dillema got one 400 MH one 400 HPS and 1 flower room other veg.....want to add another 400 but it only comes with MH light and am wondering if using both for flower room would be okay and if my veg room would be better off with HPS light cause MH heat is starting to be a heat issue, but dont know if thats a good idea SRY for da thread jACK but am curious like your self mayby you get some help also.

h8red1 said:

okay sorry 2 ask a ? in ya tread but kinda got the same dillema got one 400 MH one 400 HPS and 1 flower room other veg.....want to add another 400 but it only comes with MH light and am wondering if using both for flower room would be okay and if my veg room would be better off with HPS light cause MH heat is starting to be a heat issue, but dont know if thats a good idea SRY for da thread jACK but am curious like your self mayby you get some help also.

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u want to add another 400 but it only comes in MH ? MH and HPS are about the same price everywhere......
if u only have access to 1 MH and 2 HPS then u would be better off with the MH in the veg room and the 2 hps's in the bloom room.
also the heat from both HPS and MH are about the same.... so your veg room will NOT be cooler with hps vs mh.
using a MH and HPS in the flower room is a very good way to go... but if that is gonna force u to use hps in the veg room , i wouldnt do it.
If i were u , i would put a mh in veg and one of each in flower.
not real sure if i answered your questions but i tried.