Things to Know About Lighting

And gkwall, as a seasoned grower, might I suggest that you invest in Jorge Cervantes Marijuana Horticulture Bible to guide you along with basic, but crucial steps in your new-found hobby, as well as bone-up on some soil mix recipes, ones that you might consider carefully transplanting your crop into. Personally, I use 5-gallon buckets, have for years, and the recipe is as follows:About 75%, (NOT MIRACLE GRO!!!), organic 3B mix, (that's potting soil), 10% perlite, 5% worm castings, 10% spangum peat moss, 5% bat guano(not really necessary until flowering, but I do it anyways), and that's it man, U may want to dilute sum liquid seaweed and fish emulsion, and pour A LITTLE BIT into that, and if you can swing it, some bone and or blood meal won't hurt in that recipe as well.

has anyone got any experience with led lights?thanx

As seasoned growers, you can probably help with a basic question as I prepare to start myself. I have a 4'x4'x7' grow tent and a 600 watt HID light and am thinking of adding another 600 watt HID light. To provide cooling and ventilation, I have a 440cfm exhaust fan. I want to know if there is any such thing as too much light?

is it possible to flower with t5? or are they primarily for veg?

Couldn't agree more BCENVY

While my plant was sleeping during flowering week 6 my lights flashed on and off a few times what is going to be the consequences of this?

thank u very much this is exactly what i needed i went and got that stupid blue grow light now i know better

Too much light and the leaf turns white when the chlorophyll dies, completely different from heat which dries the leaf out and turns it brown.

One or two flashes of light during bud do not usually hurt much, repetition causes hermaphrodite and smaller buds. Some strains are more sensitive than others.

More light up to that bleaching point is better, the fuller the spectrum the better. Red and blue are trigger colors, the plant does not necessarily need only those colors for full time food, just like you cannot live on ice cream by itself.

LED's work great if enough of them can be afforded to cover the entire plant.

T5's will bud also, but again, it takes a lot of them to do it.

The meds are starting to soak in, gonna go do morning chores in the budroom now.

Hey guys...
Whats your issue on my rooms...
Flowering room

In Response to the post about using LED's to grow with compared to ....They work OK for Veg and they can be very economical however the only one's to use are professional grade high output lamps and you have to be careful and use a higher blue to red lamp ratio for veg and about 3 to 1 red to blue for flowering...also you should mix a few white and yellow one's in some of the panels as these span some of the missing freq's of light....all in all will cost you at least 3X if not even 5X more money in the beginning and you may save and I emphasize MAY becasue the power costs may be lower but I haven't seen enough grows that convince me it's really feasable..I will admit I started that way and still have a 24Watt LED grow panel stuck on my ceiling just for shits and giggles..it's still there but after reading stuff here, growing just about everywhere in the US for the last 35 years under the great one and only sun I took my own advice and went watt crazy with CFL's 5K,3500K,2700K on movable clamps and made multiple fixtures running romex on $1.29 plastic fixtures for some extra canopy boost just screw them into the ceiling screw on a few of them doublers and wa la you got a interchangable CFL canopy/clap system that pick your poison found a 65 Watt 4200 Lumen Homie Depot $16 Lowlies had 13 Watter 5K and 2.7K for a buck each hell with 40 little fixtures hanging out you can get some light to your plants including the sides.......of course I chickened out after reading and again and doing some more thinking and made sure all those CFL's are basically surrounding the HPS systems I found on amazingzon for $99 400 Watts -- as I have always said .. just listen to your plants --- they will tell you if it looks like the sun and feels like the sun then them buds will look like they have been grown under the sun---

Lowes had some 5K 13 watters and some 2.7K 13 watters for $1 each get as many of those as you can afford need more 5K in the first 1-3 months and more 2.7 K from trigger to finish would not hurt if you could fit a $99 HPS 400 watter in there would make life easy

HydroSpace said:

Hey everyone, sorry i posted this in the wrong section of the site the first time.

I have a question for anyone who knows anything about lighting for hydro systems.
im geting a hydro system that's 16" x 24" x 6"
i do not have allot of money to spend on lights at all.
i was just wondering if anyone could help me out with whats the cheapest lights i can/should get
i just wanna make sure i grab everything i need when i go down to the hardware store.

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It may blow up ...or ...like mine it might be universal and work...if you do decide to try this make sure you video tape it for a possible UTube showing if it ends up funny!

Lanshayol said:

I have a 400w MH ballast system .

I am just curious .. if I were to buy a 400w HPS sodium bulb and hook it to this same ballast , could that cause a problem ?

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yes ineed very good post

I am new at this site. I found this site very interesting. I am very happy to join this forum. I like it.

ok i have a huge dilema here i want to grow ONE marijuana plant in a 23 inch wide and 21 inch tall growroom as far as keeping the plant small i hve it covered and watering and ventilation are not a problem but lighting is a huge problem any suggestions of what lights i can use my budgets $40 or less thanks

datdude11 said:

ok i have a huge dilema here i want to grow ONE marijuana plant in a 23 inch wide and 21 inch tall growroom as far as keeping the plant small i hve it covered and watering and ventilation are not a problem but lighting is a huge problem any suggestions of what lights i can use my budgets $40 or less thanks

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see if you can find a small T5 setup within your budget.

With one plant get atleast 4-8 23w or 42w cfls and a couple cumputer fans 3 of them 1 intake 1 outtake and one hanging to strenthen the stem

thanks ill look up that T5 hopefully i can start growing that purple kush really soon