HPS or T5, in a 5 foot high grow room.

Hello,

I was considering getting T5 lights for my grow room, its a very small grow room(more like an open closet) and then did a search on HPS vs T5 and people seem to favor the HPS lights. But then I started thinking. Would my plants get to tall and get too close to the HPS in that small space? The HPS I was looking at were 600 watt, the T5 I was looking at was 100 watt 8000 lumens.

http://www.ebay.com/itm/600-watt-DIGITAL-Ballast-HPS-BULB-Lamp-digilux-600w-w-/400220424741?pt=LH_DefaultDomain_0&hash=item5d2eff0a25

and buy a reflector

T5
http://htgsupply.com/Product-HTG-Supply-2-Foot-4-Lamp-High-Output-T5.asp

Thanks.

definitely go with the HPS. But make sure the ballast is switchable to MH as you actually want MH in veg. I just got my kit that only came with an HPS but with the money I'm saving by not buying weed I'm investing in a MH too.

You'll have no problem with it in a 5 foot high spot. I got a 1000 watt going into a 6 foot enclosure

The HPS says it has 30% more blue light for vegging, do you think that is supplemental enough for the plants to veg nicely? Also would a 150 HPS watt suffice for a 2x2 foot area?

yea an HPS would work, but by having 2 lights you'd save money buying bulbs because you have two separate bulbs. I don't have facts to back this up (lol daily show) but I think that an MH would produce a LOT more of the required veging light. Only thing that will happen though is that the plant's nodes won't be as tight as it could be.

Mactabilis said:

The HPS says it has 30% more blue light for vegging, do you think that is supplemental enough for the plants to veg nicely?

Click to expand...

I think so…*yes. Check my journal (in sig)… 400w HPS veg/flower …*you don't NEED MH; but MH has the preferred output for the vegetative state.

Thanks for the replies guys! It seems I will only have enough money for either 1 MH bulb or 1 HPS bulb for growing these plants full term for now. Which one should I go for?

HPS (again refer to my grow journal … as that's what I'm using)

More information: http://www.cannabisculture.com/v2/articles/2611.html

Ok great. Thank man I've been reading that, its a great journal! I hope my plants can come out like yours have been .

if you only have money for one definitely go for the HPS! HPS is for flowering which is the most important part of the grow!

Thanks Nusky will do!

A 600 watt is way too large for your area,a 400 watt is perfect for the space but have you given any thought to heat build up issues ?

Any high intensity light source is going to heat up that small area to 100 degrees in minutes without air cooling the light,have you investigated how to properly cool a hps or mh light ?

Oh and btw,running mh for veg isnt needed & offers no savings,metal halide is only a bit better for veg & not worth a shit for bud,i dont even bother changing bulbs back n forth any more & the mh bulbs just collect dust,also be aware that watt for watt mh produces quite a bit less light output vs hps.

Even the ballasts in t 5 systems are going to elevate temps in such a small area,if you havent allready planned out how to accomplish removing hot air from the grow space you need to before buying any light.

he's right, I forgot to mention I have a 250 CFM fan in my 5x5x6 enclosure

I am running a 600 hps with 2 plants in a closet with the door open. It is cold in here so the temps are about right for the grow anyway. I have a samll fan in the room to expel stagnant heated air. I usually go SOG, but I aint grew in a year and I am trying growing less plants, but bigger plants. Hope you can manage your grow. Everything has a learning curve, good luck.

Im running a 150 watt hps and 4 cfl's for side lighting in a 3-3-5 space and it is working great.