Metal Halide or HPS

[Extortion]

What's Better From Start To Finish Grows??
& Which Brands

[Hightide805]

mh is better for veg and hps is better for flower.. if you only can use one the whole time go with hps

[Extortion]

Thanks Bro.. Whats The Best Brand Of HPS

[Hightide805]

i'm not sure sorry,

but i'm sure someone will have some imput

[GodSpeed]

Mh are better for veg but not good for flowering due to the light spectrum.

If u could only but one bulb for complete growth then i would suggest a hps.
Dont worrie about the make a hps is a hps!

If u go to hydrostores then a 400w hps is like 60 buks! :O go to some were like screw fix i paid 10 pounds for mine!

[BWC BayArea]

Originally Posted by Hightide805

mh is better for veg and hps is better for flower.. if you only can use one the whole time go with hps

I totally agree. I did my 1st grow 600W HPS 15 clones in a 4X4 area. The one thing I learned is that HPS during veg tend to cause a lot more stretching than metal halides. It is imperative that u keep your light as close as possible (w/out burning foliage of course)while maintaining control of ambient temps (especially directly under ur HID). Air cooled hoods w/ a good fan or water cooled hood should take care of that problem, that and finding the optimal distance. Hope u find this helpful. Happy Growing

Best HPS i've used is the EYE Hortilux Enhanced Spectrum Super HPS. Run u bout $100.

[westbud90]

just cfl your veg. plants!!!

[Extortion]

Originally Posted by GodSpeed

Mh are better for veg but not good for flowering due to the light spectrum.

If u could only but one bulb for complete growth then i would suggest a hps.
Dont worrie about the make a hps is a hps!

If u go to hydrostores then a 400w hps is like 60 buks! :O go to some were like screw fix i paid 10 pounds for mine!

How many Plants Do You Tend To Grow At Once Using The 400w?

[RooRman]

Both are HID (High-Intensity Discharge) lights.

MH (Metal Halide) produces a blue-green spectrum of light which is suited for vegging plants. It allows for shorter internodal spacing (distance between branches) which is desirable.

HPS (High-Pressure Sodium) produces a red-orange spectrum of light which simulates the autumn harvest. It is best suited for flowering/fruiting plants and allows for larger yields.

If you were to choose just one to grow from start to finish, veg through flower, it would be the HPS. The plants will still veg. using the HPS although they will grow taller with longer internodal spacing. In contrast, the plants will not flower very well under the MH and it's blue-green spectrum alone.

This is why I prefer a switchable ballast that will accept both types of HID lamp for the best of both worlds.

[luvtogrow]

Originally Posted by westbud90

just cfl your veg. plants!!!

At least for first 2-3 weeks while they show sex if from seed. Also get much better undergrowth with flouros/cfl vs hps in veg. I always start under shop light floros for @2 weeks and then mh till flower.

[cocoJoe]

Hi All, I want to post in this old thread just to stir the pot abit.
I was 400MH for veg, 1000HPS for bloom.
Went to 4ft 8lamp T5 for veg. and 1000W Warm MH for bloom.
Best buds I have ever grown.

[Ranxirox]

Hello, I have two(2) 400w Metal halides. One bulb is a "Grow power" 6500K-Blue and the second is "Grow power" 3000K-Red. I also have four 12x12 Red LED panels and 12 cfl's @ 23w ea. My grow space is a white Melamine Cab. with a 2 foot x 4 foot floor space. I purchased from "homedeephole".

I have designed the Cab. so that the HID's may be moved from 5' to 6' to 7' during the life of growth cycle. The Red led's are going to be placed at 5' and the Cfl's will be evenly spaced throughout.

I believe I have the vegetative period of the grow covered. My question is will the combination of Red MH + Red LED + Cfl's @ 2700k Mostly(some are 3500k, 5500k, and 6500k) be enough for a good strong budding stage? or do I need to switch to HPS?

The total wattage consumed is 1131.2W I am really trying to get an even distribution of light as well as a complete light spectrum.

P.S. I have ventilation covered and I plan on using a 12/12 schedule.

This is my first "indoor grow" BTW.

[DankBuds]

HPS from start to finish or you could alway buy a 400w HPS system and use a 400w MH conversion bulb for veg. Just a thought.

Cheers,
DankBuds