the big bang mh vs hps during veg!!

[LeonJer]

Im not far of starting my first ever grow, and after loads of reading and learning I went with dual spectrum HPS, http://www.hydroponics.co.uk/Lighting-Systems/Grow-Light-Bulbs-and-Accessories/Planta-Bulbs , it cost me £42, but Im not scrimping on the bulb, then when I go into flower I'll use just a standard HPS maybe. Lots of pro growers on youtube say MH has no place in their grow-rooms, more heat too.

Peace

 

[Toolage 87]

Depending where you live you can pick up HPS and MH bulbs and ballasts that are as low as 35w. People say that's not worth it but depending on the brand of HPS and MH that you use you can get a perfect mixture of light that your plants can use and you might get healthier plants to because of this.

 

[cheddar1985]

Im not far of starting my first ever grow, and after loads of reading and learning I went with dual spectrum HPS, http://www.hydroponics.co.uk/Lighting-Systems/Grow-Light-Bulbs-and-Accessories/Planta-Bulbs , it cost me £42, but Im not scrimping on the bulb, then when I go into flower I'll use just a standard HPS maybe. Lots of pro growers on youtube say MH has no place in their grow-rooms, more heat too.

Peace

abit harsh on mh just because heat issuse at the end of the day you should b able to dial your shit in if not then theres somethin wrong with ya brain!!

 

[cheddar1985]

Depending where you live you can pick up HPS and MH bulbs and ballasts that are as low as 35w. People say that's not worth it but depending on the brand of HPS and MH that you use you can get a perfect mixture of light that your plants can use and you might get healthier plants to because of this.

Why healthier plants? i can do maintaine healthy plants with using just straight sunmaster hps!!

 

[LeonJer]

abit harsh on mh just because heat issuse at the end of the day you should b able to dial your shit in if not then theres somethin wrong with ya brain!!

Im just going on what the pro's say, Sublbc on youtube said if you've ever wondered how large scale growers grow their ladies so fast its because they only use HPS. I dunno man Im not picking a fight, Im just sayin' what I've heard.

Peace.

 

[Samwell Seed Well]

Depending where you live you can pick up HPS and MH bulbs and ballasts that are as low as 35w. People say that's not worth it but depending on the brand of HPS and MH that you use you can get a perfect mixture of light that your plants can use and you might get healthier plants to because of this.

i would love to see the spectrums on the 35w HPS/MH bulbs that i have never seen, doesnt meanthey aint out their

FYI if you bulb says 400 and its being powered by a 150 it wont be working right, the bulbs are ment to achieve a certain temp in order to produce the sprectrums printed on box's

i have heard that the dimmible ballast features on eletronic ballast will actaully distort the spectrum and the foot print if correct bulb isnt used on a dim setting

 

[cheddar1985]

Im just going on what the pro's say, Sublbc on youtube said if you've ever wondered how large scale growers grow their ladies so fast its because they only use HPS. I dunno man Im not picking a fight, Im just sayin' what I've heard.

Peace.

No fightin here bro just stating facts . large scale growers tend not to veg and use clones that av rooted and bang em straight into flower so there is nt any need for mh really !!

 

[kevin murphy]

New update on mi thread chedder mate argos grow tent lol..

 

[Samwell Seed Well]

people like myself that grow high quality cannabis, need that long veg perioid it takes 2 months min mostly for a plant to become sexually mature and have enough stored energy to mature thrugh its cycles , commercial growers do not grow chronic they grow comercial weed.

i grow medicine thier is a difference

 

[Toolage 87]

i would love to see the spectrums on the 35w HPS/MH bulbs that i have never seen, doesnt meanthey aint out their

FYI if you bulb says 400 and its being powered by a 150 it wont be working right, the bulbs are ment to achieve a certain temp in order to produce the sprectrums printed on box's

i have heard that the dimmible ballast features on eletronic ballast will actaully distort the spectrum and the foot print if correct bulb isn't used on a dim setting

Here's a link to a 35w HPS lamp specs but for some reason I can't find a 35w MH lamp specs even thought I know there's such thing because it looks almost like a HPS lamp but its sold at an electrical store where I live.

http://www.goodmart.com/products/sylvania-lu35-d-med-67501.htm


For those who don't want to click the link here's the specs that I pulled off that site


Abbrev. With Packaging Info.: LU35DMED 20/CS 1/SKU
ANSI Code: S76
Approx. Lumens (initial - horizontal): 2100
Approx. Lumens (initial - vertical): 2100
Approx. Lumens (mean - horizontal): 1935
Approx. Lumens (mean - vertical): 1935
Arc Length (in): 0.88
Arc Length (mm): 22
Average Rated Life - Horizontal (hr): 16000
Average Rated Life - Vertical (hr): 16000
Base: Medium
Bulb: E17
Color Rendering Index (CRI): 21
Color Temperature/CCT (K): 1900
Diameter (in): 2.125
Diameter (mm): 53
Family Brand Name: Lumalux
Fixture Requirement: O
Hot Restrike Time (min): 0.5-1
Individual Unit Weight (Pounds): 0.262
Lamp Finish: Coated
Light Center Length - LCL (in): 3 7/16
Light Center Length - LCL (mm): 87
Maximum Base Temperature C (F): 374
Maximum Bulb Temperature C (F): 752
Maximum Overall Length - MOL (in): 5 7/16
Maximum Overall Length - MOL (mm): 138
Nominal Wattage (W): 35
Operating Position: Universal
Ordering Abbreviation: LU35/D/MED
Warm-up Time (min): 2-4
http://highpressuresodium.net/index.php?main_page=product_info&cPath=4_36&products_id=97

 

[Samwell Seed Well]

i wouldnt use that bulb, it only works is a single spectrum 1900K light spectrum this is what im talking about on a real grow spectrum bulb it will say par or par with a mixture or white or blue or yellow, you need par light

Photosynthetically active radiation, often abbreviated PAR, designates the spectral range (wave band) of solar radiation from 400 to 700 nanometers that photosynthetic organisms are able to use in the process of photosynthesis.

par light is not one spectrum light like the 1900K spectrum bulbs, that is more akin to CFL lighting and not HPS or MH

 

[Toolage 87]

i wouldnt use that bulb, it only works is a single spectrum 1900K light spectrum this is what im talking about on a real grow spectrum bulb it will say par or par with a mixture or white or blue or yellow, you need par light

Photosynthetically active radiation, often abbreviated PAR, designates the spectral range (wave band) of solar radiation from 400 to 700 nanometers that photosynthetic organisms are able to use in the process of photosynthesis.

par light is not one spectrum light like the 1900K spectrum bulbs, that is more akin to CFL lighting and not HPS or MH

That's why I said use it with a 35w MH light to cover all areas and never said use it alone for veg. You could use both the 35w MH and HPS for flowering to if you wanted since it would cover all areas to.

 

[Samwell Seed Well]

you need more than two spectrums to grow, has nothing to do with foot print or bulb or how far it will throw the light, about a foot of usable light, its about the multiple spectrums the plant will absorb at different times and you need all of it, i mean thats what the sun does and the whole idea is to replicate that

 

[Toolage 87]

you need more than two spectrums to grow

They do make MH bulbs that are ratedat 4000k to around 4200k. Also sorry but you don't tottly need more then 2 spectrum to grow. A person can veg and flower with using a single light rated at 4100k or 4200k. Plants will grow under just about any kind of light but how healthy they will be and how well they will grow is a total different story.

 

[Samwell Seed Well]

yes but those are single spectrum bulbs

They do make MH bulbs that are ratedat 4000k to around 4200k. Also sorry but you don't tottly need more then 2 spectrum to grow. A person can veg and flower with using a single light rated at 4100k or 4200k. Plants will grow under just about any kind of light but how healthy they will be and how well they will grow is a total different story.

look at CFL grows, single spectrum bulbs with no penatration, and look at real full spectrum grows and you will see a dramatic difference in quality and quantity, when a 150 HPS PAR bulb run vert is a little over twice as many watts as 2 of those bulbs( and much more then 2x lumens) and i can guarantee that you will get more than twice the quality and product with a proper bulb

my 100 watt cfl that i use for cloning has more lumens per watt and then three or your 35 watt bulbs and can have 4 different spectrum bulbs in it, the 2ft bulbs i buy for it are 12 bucks a piece and are 24 watts each producing 4000 lumans each figure it out, if you want to run cheap at least give yourself the best advantage

 

[Toolage 87]

yes but those are single spectrum bulbs



look at CFL grows, single spectrum bulbs with no penatration, and look at real full spectrum grows and you will see a dramatic difference in quality and quantity, when a 150 HPS PAR bulb run vert is twice as many watts( and much more then 2x lumens) and i can guarantee that you will get more than twice the quality and product with a proper bulb

my 100 watt cfl that i use for cloning has more lumens per watt and then three or your 34 watt bulbs and can have 4 different spectrum bulbs in it

Actully a 70w MH lamp puts out around 3,000 lumes but you can't compare a 100w CFL to a 35w HPS that's like comparing a 250w MH or HPS lamp to your 100w CFL. Its obv that a 100w CFL will put out more lumes per watt and a wider spec range. Now compare a 35w CFL to a 35w MH or HPS light depending on the type of CFL it is. Heck comparing a 100w CFL to a 35w MH or HPS is also like comparing a 50w MH or HPS to a 35w lamp. the 50w is gonna out preform the 35w because its more powerfull.

And by what your saying that your 100w CFL puts out more lumes per watt then a MH or HPS? Then we should compare a 70w MH lamp that outs out 3000 lumes (42.85 lumes per watt) to a 3.5w LED bulb that puts out 80 lumes per watt. So by what your saying is that my 3.5w LED bulb should preform better because it puts out more lumes per watt?

My point is you can't compare a higher wattage lamp/bulb to a lower wattage light or the other way around because one of the other will have a better performance then the other. If you want to compare your 100w CFL to a MH or HPS then compare it to a 100w MH or HPS. Also lumes don't stack its been proven on here its the lux that stacks and that's what can make the difference. No matter how many 35w bulbs you add together the lumes per watt will stay the same when each bulb has the same lumes rating is its pretty obv that a 100w CFL will have more lumes per watt over 3 35w lamps put together.

 

[Samwell Seed Well]

when your HPS bulb is producing the same spectrum as a CFL bulb i can compare

and a 24w T-5 bulbs has 4000 lumans each why the hell would you want 70w 3000 lumans, and normal HPS and MH bulbs that i use, cuase i grow too, come in full spectrum i would never think of buying a HPS/MH bulb that wasnt, no point becuase you can achive better results on the low heat, low watt scale with t-5's, or leds but im on the fence about them

a 70w HPS bulb that does one spectrum has lost its only advantage in the lighting game intensity( you need to have a big boy filiment to have this) and spectrum

the only thing different about a t-5 or cfl bulb and your 70w HPS is the clasification of style of bulb, cfl vs HPS other than that , each of those bulbs does the same thing except the HPS/MH 70w or 35w as it was earlier cost more to run and produce less lumens

next

 

[Toolage 87]

when your HPS bulb is producing the same spectrum as a CFL bulb i can compare

ok if you want to compare a HPS lamp to your CFL bulb because they have the same spectrum the compare a 100w HPS lamp that has the same spectrum as your 100w CFL.

and a 24w T-5 bulbs has 4200 lumans each why the hell would you want 70w 3000 lumans, and normal HPS and MH bulbs that i use, cuase i grow too, come in full spectrum i would never think of buying a HPS/MH bulb that wasnt, no point becuase you can achive better results on the low heat, low watt scale with t-5's, or leds but im on the fence about them

A 24w T-5 bulb may produce 4200 lumes but that's over the length of the whole bulb. Do the math and find out out many lumes per inch your 24w T-5 bulb puts out for the length then compare oh let me do it for you...

24w T5 bulb - 4200 lumes say its at 2 feet = 1w per inch at 175 lumes per inch
So the MH is about 2 inches wide from side to side so that would come out to 2 watts and 350 lumes what the T5 bulb would cover but lets say your running 2 of those T5s then that's 4 watts and 700 lumes in the same amount of space of 2 inches square so by that math the 70w MH can produce better growth in the same amount of space even a 35w MH produces more lumes per watt in the same amount of space.

a 70w HPS bulb that does one spectrum has lost its only advantage in the lighting game intensity( you need to have a big boy filiment to have this) and spectrum

the only thing different about a t-5 or cfl bulb and your 70w HPS is the clasification of style of bulb, cfl vs HPS other than that , each of those bulbs does the same thing except the HPS/MH 70w or 35w as it was earlier cost more to run and produce less lumens

Yes it may produce less lumes over the T5 but like I said the T5 bulb's lumes are spread out through the whole length of the tube and not in 1 spot.

 

[Toolage 87]

You compare the lights that use the same spectrum but I compare the lights that use the same amount of wattage but also that take up roughly the same amount of space for the light its self.


Here's a link of a pic a guy got from his harvest using a 70w HPS in a PC grow and a link to the journal that he made. Now take your 100w CFL and a 100w HPS and flower in a PC case like he did and the 100w HPS might out preform your 100w CFL that takes up the same amount of space.

https://www.rollitup.org/indoor-growing/463887-jack-herer-dwc-70w-hps-2.html#post6328022

https://www.rollitup.org/attachments/indoor-growing/1799317d1316667397-jack-herer-dwc-70w-hps-5342.jpg

 

[sso]

noticed in the tropics how everything just looks brighter more vibrant in full sun, lots more than up here in the north.

my lcd screen has a theatric mode, movies look alot better, what it does basically is just add red, but doing that gives the picture that full vibrant realistic look to the video.


having grown with mh and hps, id pick the hps if i could only run one bulb, mh Does grow them healthier, but hps does grow them stronger and quicker.
having said that, i think that there should always be some blue (i add 23w 6500k cfls to my 600w hps grow)

outdoor light has more red (tropical sun) and plants are more sensitive to blue anyways so dont need as much.

but i find that growth looks better with some added blue. (ive grown with 600w hps +400w mh, the growth looks better, but not that much better and the added heat makes it not worth it, however the growth looks better and so i add the 6500k cfls (23wX3) which you actually notice within the grow when turned on..maybe adding some more blue would be beneficial, but i dont think i would go much over 100 watts of blue with the 600 hps)