Things to Know About Lighting

What about UVA and UVB like the ones u put in reptilecages...do they do any good...what about daylight bulps and blacklight?

Very nice and detailed article - but is there anything on LED out here. Does anyone grow with LED. Any recent research worth sharing?
-or personal success-stories?

Lights, Lights. Fucking more lights. Seems to be a endless topic. I know jack shit about them, I turn the switch on they work. Heres my question to the Flurescence growers? Should there be a mix?. Cool with warm.. If so whats the ratio?
Hers my setup. Four foot by two feet area. Six young seedlings, in six inch pots. All pots will be lined up in a row. All advise is welcomed. Thanks PotHeads.

HI yall. I am growing 4 buddha white dwarfs under a 400 watt mh/hps light system. I am wondering which bulb to use. I know mh is better for vegatative growth than hps but since they are autoflowering and flower quickly maybe I should just use the hps throughout. what do ya'll think?

just change your bulb when you change your timer to flower.

candlegoat13 said:

This was very helpfull.Now ima go buy 2 cool spectrum fluorecent bulbs and 2 warm spectrum flourecent bulbs. apprx 2 feet length for my veg/clone room.

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why not use florescent lighting through out your grow as long as the lumens and color you want is right?I would like to try this...will this make my grow harder?

afew questions to anyone intrested
i have 1 hitatchie15wt8 coolwhite and 1 general electrics 15wt8 warmwhite in a seedling box i made, will they be fine for they're first month in there?
would phillips 40wt12 plant&aqarium (f40t12P&A) be suffecient for flowering (just a couple autflowering lr's)?

i also have a 400w hps , im wondering if anyone can say thay have used an EYEhortilux enhanced spectrum super i was given one by a friend(it costs $88.90Ca)
is there much of a diffrence than a philips 400w alto whitch costs about 24 bucks. i really hope the price diff. is worth it for the better one

To be honest with you idk.ive heard from others and read that hps is the way to go for flowering.i guess its quicker.

I'm planning to buy 250W MH bulb with 15000K, is that ok? Or is 15000 kelvin too much? I will only be using one 250W bulb for a small grow.

Great Information! THANK YOU

ok i been using a 120 Incandescent that you say suck i got one plant and i dont wanna go all expensive on lights so whats size fluorescent do you suggest i get??

Sylvania 400-Watt High Pressure Sodium Specialty Bulb would this work??

I have a 400 watt hortilux blue mh lamp which is supposed to have a fairly good spectrum when i switched to flowering i bought a fairly cheap hps would it be better to stay with the hortilux blue or switch to the cheaper hps

i have a 250watt hps bulb in a cool tube and a fan pushing air threw. the air that comes out is 83f i can hold the cool tube and it doesn't burn at all but the temprature in my grow closet is at 90f

why is this? is it that damn diamond reflective sheeting

This is my first question and prob a stupid one but... I know that the light times are supposed to immitate the sun cycle and the seasons, but when do you switch the light time? Is there and in between 24-0 and 12-12 and when should it be done? THANKS

I went to lowes, and they had a large selection. Including 400w high pressuse sodium, Metal Halides, and even mercury vapor bulbs

1stymer said:

you need a good light? go to any large construction site and steal a 400w mh wobble light. they are all over large site.

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I just can’t resist to be amaze with a writer who are truly exceptional for they articles that are really interesting to a blogger like me. I will not spend time reading an article when the topic is not important or has no the significant. You did a good job for always providing relevant and meaningful article.

Prior to flowering, could i use floresent or indecient? spellin SUCKS!!! but thank ya, An i love the sight!!!!

Hi everyone, I'm a newbe on my first grow with a different type of question.

I have two 400w HPSs for flower, one 400w MH for veg, and I need to buy some lighting for rooting clippings till they're strong enough for the 400w MH. I plan on using four 4' Fluoro tubes and have a couple of questions about fluoros for rooting purposes only.

Does the thickness of the tubes make any difference? (T-8, T-12, etc...)

Is there any advantage to mixing the Daylight (5,000k to 6,500k) and the Soft White (2,700k to 3,000k) or should I stick with one or the other?

And I have to make a comment about the guy looking to steal lights from construction sites. Dude, WTF is wrong with you? If you're even a half way decent grower (living in a state where MMJ is legal of course) then you should be able to bring in $100k per year on 16 plants in a 2 month rotation (8 plants per harvest) plus you'd have a half lb left over every 2 months for your own head. And that doesn't count the hash/hash oil you can make from what you throw away at harvest and extra clones that you might make. Why the hell would you need to steal lights? Not to mention the fact that you're helping to decrease demand by potentially causing the loss of work hours for those construction workers. Seriously, either invest a little cash into your setup when you harvest or get out of the game. Don't bring heat down on the rest of us.

OK, sorry about that but now that it's off my chest, if anyone who can help me with those 2 questions I'd really appreciate it.