mh or cfl?help me

extremetoker

Active Member
hey im only a lil xprienced so any ideas on whether to get a 400w mh for veg?
or two 125 w cfl bulbs for veging 5-10 plants?i have about1.5 mtr sq of space so any ideas on thatkiss-ass

do i need a 400w or is 250 watts=(16000 lumens 6400k) enough for veging 10 lemon skunk ladies and a widow so do i really need 400w??

and is 1 litre ok for my seedling pot!

oh and is 2.4 ec gonna damage my veg process?


inabit:hump::joint::hump::hump::hump:
 

listmann

Well-Known Member
Right, First off i would say u gotta watch that E.C. It sounds like it's on the high side, but if the plant tips arent yellowing, you should be allright, but any E.C. Above 1.8 and you risk mineral build-ups, that will require flushing.

For the CFL Vs HPI/HPS;

I don't remember the exact number, but i know this to be fairly true. A 125w CFL bulb would yeld you about 8.500 lumen. In comparison, a 250 HPI lamp (Metal halide for veg) Will yeld 24.000 lumen. So you see, you get more lumen wich each watt you put into a HPI lamp than in a CFL bulb. A HPS lamp (For flowering) Yelds even more lumen.

I find CFL lamps usefull only for seedlings, and maybe keeping mother plants alive, although i prefer to use a 250 HPI for my mother setup. For vegging i use 400W, and for Flowering, 600W. For growing good buds, i think you get the most out of your energy, time and you room by using atleast 400w bulbs.
 

BongJuice

Well-Known Member
An 8 bulb T5 fluorescent setup is equivalent to a 400 watt HPS.
Almost everyone I know is switching over to using T5's.
I did....and I'm saving a ton on electricity costs.
I use T5's for my mother's, vegging and the first 4 weeks of bloom. That last 4 weeks I use a 400 watt HPS, Only because I believe the HPS works better in the last 4 weeks of bud growth than the T5's.
 

listmann

Well-Known Member
Ye, no offense but that seems higly unlikely to me... But then again, i don't know exactly what type of lamp you are talking about,... But generally, energy saving bulbs are not as lumen eficcient as HPI/HPS

Edit:

Bong-juice, i am curious as to your yield... I mean, i can harvest between 450-650g in my 1.2*1.2 metres growtent... I actually sometimes have trouble with buds getting to big, and starting to rot inside if a fan arent pointed diretly at the big buds, and even then... And i have to use a net or 15-20 jojo's because the branches can't hold the weight.

I wonder if you can match that using your lighting technique with the fluorescent/ HPS... And save power at the same time.

But to keep the thread what it should be= An Answer for Extremetoker- You work out your own technique on what type's of lamps works best for you at the different stages over time... But More light is allways better than less is definetly a thumb rule.
 

extremetoker

Active Member
Ye, no offense but that seems higly unlikely to me... But then again, i don't know exactly what type of lamp you are talking about,... But generally, energy saving bulbs are not as lumen eficcient as HPI/HPS

Edit:

Bong-juice, i am curious as to your yield... I mean, i can harvest between 450-650g in my 1.2*1.2 metres growtent... I actually sometimes have trouble with buds getting to big, and starting to rot inside if a fan arent pointed diretly at the big buds, and even then... And i have to use a net or 15-20 jojo's because the branches can't hold the weight.

I wonder if you can match that using your lighting technique with the fluorescent/ HPS... And save power at the same time.

But to keep the thread what it should be= An Answer for Extremetoker- You work out your own technique on what type's of lamps works best for you at the different stages over time... But More light is allways better than less is definetly a thumb rule.

How much will 10 plants yield at least and most under 400w
 

listmann

Well-Known Member
How much will 10 plants yield at least and most under 400w
Well, a good thumb rule is if you get most of your growing area covered with green, you will yeld more or less the same amount of weed in grams, as watt's used, during flowering. So you should then be able to yeld around 300 to 450g i would say. Depending on how well you tend to the plants ofcourse.
Using CO2 might bump that yeld a bit though, but thats more trouble than it's worth in my opinion.

Also, keep in mind that my yelds are based on Hydroponic's growing, i would excpect the yeld to be a bit lower if you are growing in soil
 

communistcannabis

Well-Known Member
mh are far superior, t5 are cool and are all the rage,( yes i bought one too) but they lack penetrative power past about 12" and yes you can get them close, but if you plant grows into the t5 they will burn.

i personally use t5 for the new plants, once they reach 10-12" they go under a 400w mh that i keep about 10" away from the tops, i find this method makes bushes instead of trees, my plants are damn near as wide as they are tall
 

BongJuice

Well-Known Member
Ye, no offense but that seems higly unlikely to me... But then again, i don't know exactly what type of lamp you are talking about,... But generally, energy saving bulbs are not as lumen eficcient as HPI/HPS

Edit:

Bong-juice, i am curious as to your yield... I mean, i can harvest between 450-650g in my 1.2*1.2 metres growtent... I actually sometimes have trouble with buds getting to big, and starting to rot inside if a fan arent pointed diretly at the big buds, and even then... And i have to use a net or 15-20 jojo's because the branches can't hold the weight.

I wonder if you can match that using your lighting technique with the fluorescent/ HPS... And save power at the same time.

But to keep the thread what it should be= An Answer for Extremetoker- You work out your own technique on what type's of lamps works best for you at the different stages over time... But More light is allways better than less is definetly a thumb rule.
I don't have the time or the patience to sit here and type my entire technique of growing. But I'll give you the short version.
I have 2 moms which are Oasis and Northern lights.
I alternate every 2 weeks between the moms, to cut clones.
The clones sit in the cloning machine about 10 - 14 days.
Once they have rooted strong they go in rockwool cubes and are directly put into vegg status in an ebb-n-flow set up. I vegg for approx. 2 weeks or until they are 6-8 inches tall.
I only grow 4 plants at a time. I do it this way because it's easy to maintain.
I have a perpetual grow every 2 weeks, where I harvest approx. 5-6 ounces of bud every 2 weeks.
For the first 4 weeks of blooming I grow under T5 fluorescents, the last 4 weeks are grown under a 400 watt HPS.
The last 4 weeks of growth I use Liquid light, Which makes my 400 watt bulb work like a 600 watt bulb.
I grow hydroponically using Advanced Nutrients and I also use ALL of the micro nutrients.
I also use CO2 the entire blooming cycle, I keep the Ppm levels right around 1500 - 1600.
I change my nutrient weekly during weeks 1,2,7 and 8. Weeks 3,4,5,and 6 I keep for 2 weeks. I just make a stronger dosage during those weeks.
I flush for 7 days.
I put them in the dryer for 7 days or until they are dry to the touch.
Then I cut the buds and let them thorougly dry in about a dozen cigar boxes for 3-5 days.
Afterwards I put them into mason jars for the cure.

Everyone has there own way of growing, there is'nt just one way of growing. Especially for all the different types of strains out there.
If I was to only harvest 3 or 4 times a year then yea i would probably go with a higher wattage bulb and also grow alot more plants.
But I'm comfortable with my setup, I harvest about 20 harvests a year and have been doing it this way for a long time.
I get around 5.5 ounces every 2 weeks. I spend approx. 60 dollars a month extra on my electricity bill, and I spend about 100 - 200 dollars a month on nutrient and maintenance issues.
My entire grow room and everything I have into it cost me around $4,000, and I built it myself.

As far as you being able to harvest over a pound in 4X4 tent.
Good for you...Congratulations.
Your yield doesn't impress me. I'm not here to compare cock sizes.


As far as my circle of friends who also grow. Your right...it is quite small.
Is'nt it better that way?

Look I have nothing to prove on this silly internet site.
If i see someone on here who might need a little advice on certain subjects then I'll give up some of my hard earned experience to them.
 

extremetoker

Active Member
I don't have the time or the patience to sit here and type my entire technique of growing. But I'll give you the short version.
I have 2 moms which are Oasis and Northern lights.
I alternate every 2 weeks between the moms, to cut clones.
The clones sit in the cloning machine about 10 - 14 days.
Once they have rooted strong they go in rockwool cubes and are directly put into vegg status in an ebb-n-flow set up. I vegg for approx. 2 weeks or until they are 6-8 inches tall.
I only grow 4 plants at a time. I do it this way because it's easy to maintain.
I have a perpetual grow every 2 weeks, where I harvest approx. 5-6 ounces of bud every 2 weeks.
For the first 4 weeks of blooming I grow under T5 fluorescents, the last 4 weeks are grown under a 400 watt HPS.
The last 4 weeks of growth I use Liquid light, Which makes my 400 watt bulb work like a 600 watt bulb.
I grow hydroponically using Advanced Nutrients and I also use ALL of the micro nutrients.
I also use CO2 the entire blooming cycle, I keep the Ppm levels right around 1500 - 1600.
I change my nutrient weekly during weeks 1,2,7 and 8. Weeks 3,4,5,and 6 I keep for 2 weeks. I just make a stronger dosage during those weeks.
I flush for 7 days.
I put them in the dryer for 7 days or until they are dry to the touch.
Then I cut the buds and let them thorougly dry in about a dozen cigar boxes for 3-5 days.
Afterwards I put them into mason jars for the cure.

Everyone has there own way of growing, there is'nt just one way of growing. Especially for all the different types of strains out there.
If I was to only harvest 3 or 4 times a year then yea i would probably go with a higher wattage bulb and also grow alot more plants.
But I'm comfortable with my setup, I harvest about 20 harvests a year and have been doing it this way for a long time.
I get around 5.5 ounces every 2 weeks. I spend approx. 60 dollars a month extra on my electricity bill, and I spend about 100 - 200 dollars a month on nutrient and maintenance issues.
My entire grow room and everything I have into it cost me around $4,000, and I built it myself.

As far as you being able to harvest over a pound in 4X4 tent.
Good for you...Congratulations.
Your yield doesn't impress me. I'm not here to compare cock sizes.


As far as my circle of friends who also grow. Your right...it is quite small.
Is'nt it better that way?

Look I have nothing to prove on this silly internet site.
If i see someone on here who might need a little advice on certain subjects then I'll give up some of my hard earned experience to them.


SOUND ADVICE and your help is appriciated bong juice:bigjoint:bongsmilie

and yes people need different systems to suit them:mrgreen:
 

extremetoker

Active Member
...even though I hate all Foxfarm products, I have to agree with the above post :)

so i have a 8ooo lumen cfl
....
i have a mh 400w
....would a 125 w cfl be enough for 10 plants in the seedling stage?surely not?



and how long in days after my plant sprouts should i put on my mh 400 w?

i dont want to fuck up after paying alot of money and time expensed


sound:bigjoint:


bongsmilie
 

hugetom80s

Well-Known Member
My rule of thumb is to always put as much light over a plant as I can cool for. I'd put wall-to-wall 1000w bulbs if I could find a way to keep them cool enough.

Well, that and someone else to buy them for me.

CFLs are cheaper to run and don't get anywhere near as hot, so they have good uses. But if you can afford it $$-wise and heat-wise, get the HIDs.

Good lights, good nutes and good air... that's a winning combination.
 

sourdordie

Member
I have 10 plants 6 in an 15gallon dwc and 2 in individual buckets 4 and 5 gallons. My question is it ok to veg 10 plants under 2 125 watt cfl with 6 26watt cfl bulbs for supplymental lighting?
 
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