Metal Halide VS High Pressure Sodium
- Thread starter justiceman
- Start date
M Blaze
Well-Known Member
I wouldnt say I have no space limitations because I like to max out the space I have regardless of how big the room is. I guess it has a lot to do with the way I grow because I like to encourage some stretch during veg but mainly in the last week or 2 before turning them.That's fine if you have no space limitations, because red causes stretch
justiceman
Active Member
I do plan on getting a MH for my next run but as for these girls they vegged perfectly well under my hortilux hps(which claims to have added some blue into the spectrum). I know that HPS is good for flowering, but what about its lack of UV light? does that have any relevance? does UV even aid in the creation of thc?
They are droopy because I took the pic when the lights were off(the HPS messes my camera up)
In my earlier post I stated that I vegged those under a 400w hortilux super hps. they don't look very stretched to me.
Woomeister
Well-Known Member
2x250watt cfls for first 2 weeks of veg then HPS...
justiceman
Active Member
M Blaze What HPS do you use if you don't mind me asking?
M Blaze
Well-Known Member
I have a few different ones that I use but all are 600 watts. The brands I use and have tried are Growlush: http://www.growlush.com/lamps.htm Which I like best. GE Lucagrow: http://www.gelighting.com/apo/litlib/lucagrow.html and also Sunmaster: http://www.sunmastergrowlamps.com/SunmLamps.html
sunpulselover
Member
hps are the worst bulbs for plants they are reds only with no useable uv for your plants flat out they suck forget them.
ok a comparison a honda thats tuned up with some cool air intake and a exuast (hps)
vs
a stock farrari enzo (sunpulse metal halide)
who do you think would win.
its the same low pressure soduims came out back in the 40 with street lights and hps came out in the 60 for street lights
is light tuning up a honda.
why would you do that if you really want the best quality bud.
sunpulselamps.com cheeck out the bulbs they were made for high frenquncy ballast thats todays e and d ballasts.
kiss you hps goodbuy.
ok a comparison a honda thats tuned up with some cool air intake and a exuast (hps)
vs
a stock farrari enzo (sunpulse metal halide)
who do you think would win.
its the same low pressure soduims came out back in the 40 with street lights and hps came out in the 60 for street lights
is light tuning up a honda.
why would you do that if you really want the best quality bud.
sunpulselamps.com cheeck out the bulbs they were made for high frenquncy ballast thats todays e and d ballasts.
kiss you hps goodbuy.
justiceman
Active Member
Interesting. I have been waiting to here about Sun Pulse lamps. I hear they are excellent. I have checked out the site, and what they claim most definitely seems logical. However the only thing I don't like is that they refuse to give out lumen output. They claim it's irrelevant, because the plant only responds to availability of the color spectrum and lumens are measured on what the human eye can see. That seems to make sense except for one thing. Why do HPS/MH out perform CFL's? Probably because they have greater lumen output. Why do 1000w HPS/MH out perform 400w HPS/MH? Probably because they have greater lumen output. Sun pulse also advises that you purchase the 3k, 4k, 6k, and 10k lamps for optimum spectrum's during certain times. Sun Pulse better be damn good if they expect you to buy 4 lamps for a grow session, and they cost around $120 a lamp. I did however see them at the SF Garden expo and they are bright as hell. The whole idea intrigues me and I always find myself toying with the idea of Sun Pulse. Especially since they claim that their pulse start lamps work better with the electronic and digital ballasts.
vertise
Well-Known Member
I have been reading into the both hps and mh. I think most people like i did used hps throughout there grow because there is limited if any significant red spectrum in most mh bulbs. Hps bulbs will give you a usable blue along with the needed red for flowering. However I must say despite the lack of lumens that sun pulse may have they did come out with a nice spectrum of bulbs which i have to say is hard for hps to beat. Seeing that you can go with 3k 4k 6.4k 10k mh sun pulse bulb is very important. 2.2 k is what a hps red spectrum usually is. being able to come near that with a 3k bulb is very impressive for mh lamps. My two cents is; along with the uv benefit of mh you now can get all spectrums with mh bulbs. More spectrums of light then hps offers. start veg with the 6.4k bulb then flower with the 3k bulb and the last week of flowering toss the 10 k bulb in to get every benefit of the uv to draw out trichomes. Also a big thing is i am switching to quantum ballasts. Sun pulse certifies brands like quantum and other companies that they test there bulbs with. this ensures that there lamps work properly on those digital/electronic ballasts. I have read about a problem with using some bulbs with digitals. The hertz at which somes bulbs operate do not match up with the digital ballasts on the market. This intern can cause your ballast to over heat or bulb to break which for alot of people will cause a fire. Its like putting regular gas in your ferrari, creates problems.
P.S. I know its not the best worded post but i am working on 24 hours no sleep
P.S. I know its not the best worded post but i am working on 24 hours no sleep
Brick Top
New Member
They are hybrid bulbs that I have mentioned to people for ages. They have both a Metal Halide and a High Pressure Sodium filament in each light so they put off both the MH and the HPS light spectrum.
　
The question I have not been able to find a sufficient answer to is what it their penetration capabilities like? For example a 600 hybrid bulb puts off 300-watts of MH at one and 300-watts of HPS at the same time but while they come from one bulb it is a two part bulb so do you really have 600-watts of light penetration or do you have 300-watts of MH penetration and 300-watts of HPS penetration or a full 600-watts of mixed light spectrum penetration?
　
The same goes for a 1000-watt hybrid bulb. It has a 600-watt HPS filament and a 400-watt MH filament so do you have 400-watts of MH penetration and 600-watts of HPS penetration or a full 1000-watts of a mixed light spectrum penetration?
ADTR
Well-Known Member
hold on a sec here. I gotta call bullshit... Kelvins are used to measure temperature. So why would you change bulbs throughout your grow just to increase the temp? So why would you exchange a 3K 1000 watt bulb for the same wattage bulb, except 3 times hotter?
vertise
Well-Known Member
the company itself recommends using there 4k for seedling then there 6.4 for veg and the the final week of veg using the 4k. Then during flowering they say use the 3k until the final week then switch to the 10k. I mean i am sure that would produce a glorious plant, even though they dont obv say do this for your marijuana plants i am sure it would produce amazing results. however the downside is the idea that each 600 watt bulb is 130 bucks. so if you got a extra 520 bucks laying around its a good deal. esp since you will be able to use these lights for many grows because of minimal wear and tear. i myself will switch later down the line
justiceman
Active Member
My last grow was with a 400w Lumatek and those are certified by Sun Pulse. I ran a Hortilux super hps. It definitely vegged quite well because the plants were nice a bushy(page 1 post 8 ), but I really like the UV aspect of MH. I haven't tried them before, but I figure Sun Pulse is worth a shot. I was going to buy the Hortilux blue, but if I throw a few extra bucks I can get the 6k. possibly grab a 3k later, because that is the bulb that most intrigues me. A MH that puts off Red spectrum like hps but with added benefits of UV. Wouldn't that produce more resin than hps?
justiceman
Active Member
Really? how so? I didn't have any problems but I only used it for 28 days and then flowered outside.
vertise
Well-Known Member
Well i should say that they have a problem when used with electronic balasts. The hertz at which a hortilux and other bulbs like sunmaster and solar max operate at are must lower then what the ballast fires up at. Lumatek has actually acknowledged the problem and is working on it. The difference creates such a strain on either the bulb or ballast mostly the bulb that they burst/burn out. Many people who have exp with digitals say that you should go with the cheaper bulbs cause the efficiency that the more exp ones try to create do not match the digital power. I mean i use magn ballasts so its not important but i do plan on switching to digital so for the last 6 months ive been researching.
skunkman98536
Well-Known Member
hahahahahaha ... seriously ...