Which is better to use? I'm using one of each. Is that the way or should I just be using one kind? :rolleyes:
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Which is better to use? I'm using one of each. Is that the way or should I just be using one kind? :rolleyes:
Most grow guides will say that the cool-whites are better for vegetation and the warm ones are better for flowering. Using a mixture of both will be fine though. I've heard of some people using mostly cool-whites with just a couple of warm-whites during vegetative growth, and then switch round during flowering so they have mostly warm-whites with just a couple of cool-whites. It's to do with the spectrum.
what gtc said is true. i have also read to change the tubes about every 6 months because they lose their spectrum when they get older.
Thanks for the replies :).
all u need is a couple good cool flourescents to raise ur little ones up to ur flower cycle.Quote:
Originally Posted by 420smoker
what lights are those?
can u get flourescents that plug in to the means plug socket?
You can get flourescents that screw in to a regular lamp. That's what I'm using, and my babies are as green as ever. I recommend a very small lamp that you can orient in any direction to get as much light as possible. I'm only using one light at this point (42 watts, says it looks like 200 watts iridescent); I think it's cool-white. These flourescent "bulbs" are not recommended to be "hung" upside down in a "hovering" or desk lamp due to fire hazard (read on the packaging). Also, I'm giving my plants sunlight as much as possible, but that'll change soon since they'll be visible from my balcony. They're really shooting up! This is my first grow, and I have to say, all the advice I've gotten on forums and websites and such has been WAY useful.
Be creative, but careful, use common sense! I'm using stuff just from around the house and keeping it minimal with expense, and I'm seeing good results so far.
A little bit confused. Please give me some assistance with this one too.
Ive never heard of "soft" florescents.
whats the spectrum (kelvin temperature)
I believe cool-whites have more light at the blue/violet end of the spectrum, where warm-whites are more on the red side. Marijuana plants tend to like that blue part of the spectrum. To understand the difference in the two different shades of white the lights will produce, try looking at a white wall through one eye, and then the other. As you repeat this, one eye will see a slightly more reddish-tinted white, or "warm" white, and the other eye will see a slightly more bluish-tinted white, or "cool" white. The sun has a lot of UV light, which is beyond the blue/violet end of the spectrum. Plants flourish best in the direct sun, which means they like the closest thing to UV light they can get, which is cool white light with more blue and violet wavelengths. Someone said that the warm white flourescents were better for the flowering stage, but I wouldn't know about that, I'll try it some time.