Ok, last thread I make, but Im getting confused ?

JxAxG

Well-Known Member
I have been searching through the site and read the CFL tutorial on this subject, however, im still not getting it.

Ok so I bought some 42 watt = equiv to 150 wat 2700 lumens, light, ok.

I have recieved and read fb where the 2700 lumens are good for flowering, so checklist of flowering light completed, i guess.

So I read and search on, and see than 5000k -6500k is ideal for veg. stage. But here is where I get lost, but if I can get just a few solid answers, then Ill just start my growing and sharing the pics.

How can 6500k ones ive seen say 6500k color temp. 23 watts, 1700 lumens, then the 42 wat 150 equiv ones be better yet still have a color temp of 2700?

The price for the ones ive seen on ebay and other places that are 6500k color temp are even cheaper?

Does than mean I have to purchase a 23 watt 1700 lumens, 6500k color temp cfl for my veg growth?

:confused:
 

JonKollar

Well-Known Member
dude your cfls are good for veg no matter what kind they are. but i would never suggest cfls or fluros for flower. i previously used fluros from veg to flower and ended up with big but loose shake buds that didnt get me very high, use metal halide or hps lighting for flowering!!!!!!!!!! please do yourself the favor and take my advice.

PS if your just learning dont make things more complicated than the really are. germinate a seed and plant it in a small pot with 1 cfl above it keeping the light one inch away and go from there.

check my baby at 16days veg from outdoor bagseed under 1 400w metal halide.. https://www.rollitup.org/general-marijuana-growing/140247-indoor-400w-mh-1-seed.html
 

Yellerz

Well-Known Member
ok, so I am a newbie 2, but have been doin' my own studies here. The "color temp." of the light depends on where they are on the actual color spectrum. such as "cool" lights are blue-green rays and "warm" are your yellow-red. Lumens are the power of the light emitted.

From what I gather, the MORE LUMENS THE BETTER. I also know that CFLs are good for vegging because of the high "cool" colors, but u def. r gonna want some higher concentrations of "reds" for flowering which the HPS are great for.

Also. alot of people will talk junk about the CFLs not being sufficient light for growing, but here are a couple cfl pics of my babies...I swear by 'em. Hope this helped. They are about 6 weeks old...
 

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JxAxG

Well-Known Member
Nice bro, Ill prolly have to invest in something like that down road. So basically, your sayin' i can use my 2 150 watt 2700 lumes for veg state and be fine?
 

SilverH4ze

Active Member
Wow dude ok..uhmm ima try n help you out. Kinda pointless because ALL THE ?'s you asked can be found if you take the time to look but ill answer
them for you.

"I have recieved and read fb where the 2700 lumens are good for flowering, so checklist of flowering light completed, i guess."

How much light is needed?
The minimum amount of light required by marijuana plants is around 3000 lumens per square foot. However, it's not 100% accurate, since although you may have a 10,000 lumen light, the amount of light that reaches the plant varies with the distance between the light and plants, and reflectivity of the grow box. The ideal amount is somewhere around 7000-10,000 lumens/sqft, and as long as the plants do not burn, as much light can be used as you want.

So you need at least 7000-10000 lumens per sq foot Period, thats
the optimal growing conditions for cannabis.
5K - 7K
Kelvin: Strong Blue Light
Promotes bushy growth. Ideal for rapid growth phase of plants.
Greatly enhances all-around plant growth when used with super
high output, high pressure sodium or 3K warm metal halide lamps.

2.7K - 2700 Kelvin: High Pressure Sodium Lamps
Redder color mix, used for propagation, blooming, supplemental
greenhouse lighting.

"So I read and search on, and see than 5000k -6500k is ideal for veg. stage." - Yes this is correct plants require lights within the 5000-6500k
range, 6500k being optimal.

"Does that mean ill have to purchase a 23 watt 1700 lumens, 6500k color temp cfl for my veg growth?" - YES, in fact you will have to buy multiple lights per plant. If getting 23w that put out 1700 lumens you will need
4, 23w's per plant to get a lumen output of 6800. T5s are more space effecient.

www.htgsupply.com - where you can find everything you will need as far as lighting,dirt,grow equip etc is concerned.



 

JxAxG

Well-Known Member
Damn, both of yall's plants look great, I just wanna make sure that the 2700 lumes 150 watt is sufficient, I mean, I'm not dogging folks out, but I keep seeing soo many mixed reviews, im guess im just tryin to find someone that has the same lights and has had success, im just tryin to grow like 1 or 2 plants.
 

SilverH4ze

Active Member
As yellerz demonstrated, CFLs CAN be used from Start - Finish
and you will get great results. But if you step it up to using a MH
for veg or say CFLs for veg and a HPS for flower, you will be
greatly rewarded for the extra expenses.
 

SilverH4ze

Active Member
Damn, both of yall's plants look great, I just wanna make sure that the 2700 lumes 150 watt is sufficient, I mean, I'm not dogging folks out, but I keep seeing soo many mixed reviews, im guess im just tryin to find someone that has the same lights and has had success, im just tryin to grow like 1 or 2 plants.
You need 6500k 23w=150w for veg. 2700k for flower.


Color Temperature

You might see a lot of different labels when shopping at the store for CFL’s. Label’s including Soft White, Warm White, Cool White, Bright White, Halogen White, Daylight White, Full Spectrum. And also label’s like 2700K, 3000K, 3500K, 4000K, 5000K, 6400K, and 6500K. These are all the color temperature of the light you are using. This is a measure of how warm or cool the light given off by a lamp appears, with warmer colors having a yellowish tinge and cooler colors being tinged with blue. What confuses some people is that the warmer a color is, the colder its color temperature is. (ex. Warm White = 2700K). Bulbs ranging in the 2700K-3000K spectrum are usually labeled Warm White or Soft White, bulbs ranging in the 3500K – 4000K spectrum are bright white or cool white, 5000K is labeled Full Spectrum, and finally 6400K – 6500K is labeled Daylight. You can grow an entire crop with CFL’s if you chose the right spectrum of bulb’s. For Vegetation you will want to use 6500K or 5000K, and when you flower you will want to switch to 2700K or 3000K . The reason being, throughout the year the plant’s outside receive more 6500K light because the day’s in summer are long and hot and as Autumn/Winter get’s closer the day get’s shorter, and gradually receives less 6500K light and more 2700K light as the plant flower’s. Do what you can to avoid bulbs within that 3500K – 4000K because they emit very little light that Is useful to your plant. Notice here the difference between the CT of these lamp’s
 

Yellerz

Well-Known Member
I only have (2) 100 w and one 23w i had layin around. I also am using aluminum reflectors i got at the depot and they increase the amt. of lumens by 50%...highly recommended. they r just clamp on lights that some use for their reptiles and fish...here's what they look like...
 

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JxAxG

Well-Known Member
As yellerz demonstrated, CFLs CAN be used from Start - Finish
and you will get great results. But if you step it up to using a MH
for veg or say CFLs for veg and a HPS for flower, you will be
greatly rewarded for the extra expenses.
Ight I gotcha, but again lol, will the lights I have as of now be good enough? I have 2 of the 2700 lum 150 watt, all I was tryin to figure out is will that be good enough? Again, im growing like 2 plants, I read your very imformative lesson on lighting, and I thank you, but I was basically tryin to see if what I have as of now will work in the begining at all.

I mean there is no way I can buy a expensive light right now, but for now, im tryin to figure out what will work best.

Thanks again :)
 

JxAxG

Well-Known Member
I only have (2) 100 w and one 23w i had layin around. I also am using aluminum reflectors i got at the depot and they increase the amt. of lumens by 50%...highly recommended. they r just clamp on lights that some use for their reptiles and fish...here's what they look like...
Thanks man, great looking plants, yall are actually starting to give me hope lol
 

boneyshapeye

Well-Known Member
i dident read past the second line but i got a 34 watt 2700k thats = 2 a 150 how its a 42= to 150 lol dont mind me im just very outa it right now lol
 

SilverH4ze

Active Member
Ight I gotcha, but again lol, will the lights I have as of now be good enough? I have 2 of the 2700 lum 150 watt, all I was tryin to figure out is will that be good enough? Again, im growing like 2 plants, I read your very imformative lesson on lighting, and I thank you, but I was basically tryin to see if what I have as of now will work in the begining at all.

I mean there is no way I can buy a expensive light right now, but for now, im tryin to figure out what will work best.

Thanks again :)
Ok then..you have 2 2700k? or 2700 lumens?
I think you mean the color temp is 2700k, its a 23w bulb
thats a 150w equivalent?
 

JxAxG

Well-Known Member
Ok then..you have 2 2700k? or 2700 lumens?
I think you mean the color temp is 2700k, its a 23w bulb
thats a 150w equivalent?
Yeah I guess a few typo's I must apologize for. Its a 42 watt = 150 eq 2700 lumens. Is that cool? I got 2 of them, I got seeds almost done germinating, so thats why I prolly seem like a nag, but after I get this light thing done and start growing, everyone will see Im not a total douche, lol.

Sorry just kinda is panic mode, cause the last time I used that little one on the far left and it didnt do that well, I have 3 of them.
 

Yellerz

Well-Known Member
for just the 2 plants i think they will sustain throughout the veg. phase. think about pickin up a reflector or 2 and u should be just fine til u start flowering. Again, the more lumens the better but they should work. just remember that the cfls emit almost NO heat, so dont be afraid to keep them right on top of the ladies. no more than like 2" from the tops of the plants. they should not burn. just put your hand near them and if its too hot for ur hand then its too hot for the girls...but i keep mine almost touching...bushing out like crazy.

Please keep m updated. I like watchin others grows that are similar to my setup. Good luck and I say go ahead and get started...

Feel free 2 throw me a little "rep"...lol
 

JxAxG

Well-Known Member
for just the 2 plants i think they will sustain throughout the veg. phase. think about pickin up a reflector or 2 and u should be just fine til u start flowering. Again, the more lumens the better but they should work. just remember that the cfls emit almost NO heat, so dont be afraid to keep them right on top of the ladies. no more than like 2" from the tops of the plants. they should not burn. just put your hand near them and if its too hot for ur hand then its too hot for the girls...but i keep mine almost touching...bushing out like crazy.

Please keep m updated. I like watchin others grows that are similar to my setup. Good luck and I say go ahead and get started...

Feel free 2 throw me a little "rep"...lol
I sure will buddy, I will share pics of my grow space and all, which is pretty cool btw IMO, I really appreciate this forum, alot of smart and nice folks on here, Im glad to be apart of it!
 

SilverH4ze

Active Member
for just the 2 plants i think they will sustain throughout the veg. phase. think about pickin up a reflector or 2 and u should be just fine til u start flowering. Again, the more lumens the better but they should work. just remember that the cfls emit almost NO heat, so dont be afraid to keep them right on top of the ladies. no more than like 2" from the tops of the plants. they should not burn. just put your hand near them and if its too hot for ur hand then its too hot for the girls...but i keep mine almost touching...bushing out like crazy.

Please keep m updated. I like watchin others grows that are similar to my setup. Good luck and I say go ahead and get started...

Feel free 2 throw me a little "rep"...lol
Blah blah blah blah...Dude if you want some decent smoke i HIGHLY recommend getting at least two more of those bulbs.
Optimal growing conditions for cannabis mean you need at least 6000 lumens PER plant to get desired results. 20-30$ more
to ensure you have a great plant is not THAT bad.
 
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