Pics of First Grow!

[{Kottonmouth.King}]

LOL ok well I'm Agnostic. Be careful though man. Just be careful. Have fun and get some better lights! HPS for flower MH/CFL(6500K) for veg.

Do you know about temp ratings for lights?

 

[Christian for Ganja]

LOL ok well I'm Agnostic. Be careful though man. Just be careful. Have fun and get some better lights! HPS for flower MH/CFL(6500K) for veg.

Do you know about temp ratings for lights?

I've been reading them on the specs, which is why I know fans are necessary for cooling. But I'm still researching the temp ratings, color spectrum, lumen, etc. Alright, so trade out the 4' florescent for screw-in CFL's. Gotchya. I assume any 200 watt (given my calculated space requirements for lumens, watts, etc.) CFL will be sufficient?

 

[MrFishy]

Been growin' w/same lights as you're using for many years (+30)
IMO you need to keep all your plant tops as close as possible to the tubes the entire grow. Only the ends are hot-tish, so burn isn't an issue, presuming these are just regular fluro tubes (40W).
Once you get it together, you'll know how tall you want your crop and be able to set your lights to that height and leave them, using shims (boxes, whatever) to bring the plants to the lights instead of bringing the lights to the plants. This helps because often plants aren't the same size, as we all know, or should!
Here's a couple pics of one I just finished harvesting last night. This is what LST and topping can do for ya.

 

[blazin waffles]

I've been reading them on the specs, which is why I know fans are necessary for cooling. But I'm still researching the temp ratings, color spectrum, lumen, etc. Alright, so trade out the 4' florescent for screw-in CFL's. Gotchya. I assume any 200 watt (given my calculated space requirements for lumens, watts, etc.) CFL will be sufficient?

I believe the easiest thing to do is make sure you have 50w of CFL for each sq ft you have. You can get an hps from HTGsupply.com for cheap. I got mine off their ebay store for 150 including shipping, and you can get a MH conversion bulb for that same setup.

 

[Christian for Ganja]

Been growin' w/same lights as you're using for many years (+30)
IMO you need to keep all your plant tops as close as possible to the tubes the entire grow. Only the ends are hot-tish, so burn isn't an issue, presuming these are just regular fluro tubes (40W).
Once you get it together, you'll know how tall you want your crop and be able to set your lights to that height and leave them, using shims (boxes, whatever) to bring the plants to the lights instead of bringing the lights to the plants. This helps because often plants aren't the same size, as we all know, or should!
Here's a couple pics of one I just finished harvesting last night. This is what LST and topping can do for ya.

Very encouraging, MrFishy. Maybe I'll try this next batch of crap with more intense monitoring and use of my regular plant/aquarium 40w florescent bulbs (purchased a local hardware store). Maybe see how much concentration of those in my new PVC grow-frame. I never thought to bring up the plants to the light, rather than drop the lights to the plants. I've been frustrated with that lighting inconsistency. Thanks for the idea of taking the plants to the lights. That gives me more ideas for my PVC frame design, which is VERY appreciated. I want to build it and be done! lol

 

[Christian for Ganja]

I believe the easiest thing to do is make sure you have 50w of CFL for each sq ft you have. You can get an hps from HTGsupply.com for cheap. I got mine off their ebay store for 150 including shipping, and you can get a MH conversion bulb for that same setup.

I've been utilizing a light-space calculator. For instance, my entire basement (12'x12'x8') would need the following:

Minimum Lighting 25 watts Per Square Foot Lighting
The minimum recommended lighting for your area is 3600 watts
Ventilation
The minimum flow rating of your fan should be 960.0 Cubic Feet per Minute (CFM)
Power Requirements
This setup will require 19.5 amps to be available at all times for safest operation*

Optimum Lighting 40 watts Per Square Foot​

Lighting
The optimum reccomended lighting for your area is 5760 watts
Ventilation
For optimum ventilation the flow rating of your fan should be around 1056.0 Cubic Feet per Minute
Power Requirements
This setup will require 31.2 amps to be available at all times for safest operation*

Maximum Lighting 60 watts Per Square Foot​

Lighting
The maximum reccomended lighting for your area is 8640 watts
Ventilation
Going this way you will require a fan with a flow rating of at least 1248.0 Cubic Feet per Minute
Power Requirements
This setup will require 46.8 amps to be available at all times for safest operation*
Additional Comments
Getting to these points and or over it is highly reccomended the grower use Co2 in their room as your plants will only be able to photosythesise a certain amount of light before needing a Co2 boost to benifit


But I think it would be better to condense the space with the PVC frame to cut down on electricity. I don't need all that space. So, now it's a grow space of 10'x3'x7':

Minimum Lighting 25 watts Per Square Foot Lighting
The minimum recommended lighting for your area is 750 watts
Ventilation
The minimum flow rating of your fan should be 175.0 Cubic Feet per Minute (CFM)
Power Requirements
This setup will require 4.1 amps to be available at all times for safest operation*

Optimum Lighting 40 watts Per Square Foot​

Lighting
The optimum reccomended lighting for your area is 1200 watts
Ventilation
For optimum ventilation the flow rating of your fan should be around 192.5 Cubic Feet per Minute
Power Requirements
This setup will require 6.5 amps to be available at all times for safest operation*

Maximum Lighting 60 watts Per Square Foot​

Lighting
The maximum reccomended lighting for your area is 1800 watts
Ventilation
Going this way you will require a fan with a flow rating of at least 227.5 Cubic Feet per Minute
Power Requirements
This setup will require 9.8 amps to be available at all times for safest operation*
Additional Comments
Getting to these points and or over it is highly reccomended the grower use Co2 in their room as your plants will only be able to photosythesise a certain amount of light before needing a Co2 boost to benifit



Is this accurate and the most precise?

 

[blazin waffles]

I've been utilizing a light-space calculator. For instance, my entire basement (12'x12'x8') would need the following:

Minimum Lighting 25 watts Per Square Foot Lighting
The minimum recommended lighting for your area is 3600 watts
Ventilation
The minimum flow rating of your fan should be 960.0 Cubic Feet per Minute (CFM)
Power Requirements
This setup will require 19.5 amps to be available at all times for safest operation*

Optimum Lighting 40 watts Per Square Foot​

Lighting
The optimum reccomended lighting for your area is 5760 watts
Ventilation
For optimum ventilation the flow rating of your fan should be around 1056.0 Cubic Feet per Minute
Power Requirements


This setup will require 31.2 amps to be available at all times for safest operation*

Maximum Lighting 60 watts Per Square Foot​

Lighting
The maximum reccomended lighting for your area is 8640 watts
Ventilation
Going this way you will require a fan with a flow rating of at least 1248.0 Cubic Feet per Minute
Power Requirements
This setup will require 46.8 amps to be available at all times for safest operation*
Additional Comments
Getting to these points and or over it is highly reccomended the grower use Co2 in their room as your plants will only be able to photosythesise a certain amount of light before needing a Co2 boost to benifit


But I think it would be better to condense the space with the PVC frame to cut down on electricity. I don't need all that space. So, now it's a grow space of 10'x3'x7':

Minimum Lighting 25 watts Per Square Foot Lighting
The minimum recommended lighting for your area is 750 watts
Ventilation
The minimum flow rating of your fan should be 175.0 Cubic Feet per Minute (CFM)
Power Requirements
This setup will require 4.1 amps to be available at all times for safest operation*

Optimum Lighting 40 watts Per Square Foot​

Lighting
The optimum reccomended lighting for your area is 1200 watts
Ventilation
For optimum ventilation the flow rating of your fan should be around 192.5 Cubic Feet per Minute
Power Requirements


This setup will require 6.5 amps to be available at all times for safest operation*

Maximum Lighting 60 watts Per Square Foot​

Lighting
The maximum reccomended lighting for your area is 1800 watts
Ventilation
Going this way you will require a fan with a flow rating of at least 227.5 Cubic Feet per Minute
Power Requirements
This setup will require 9.8 amps to be available at all times for safest operation*
Additional Comments
Getting to these points and or over it is highly reccomended the grower use Co2 in their room as your plants will only be able to photosythesise a certain amount of light before needing a Co2 boost to benifit



Is this accurate and the most precise?

Well shit they did math and what not. I'd say it's kinda more accurate. What is the light calculator for.....growing plants or for something else? See lumens are just a measurement of light that we can see with our eyeballs. The plants actually use a much different part of the light. The spectrum is more important than lumens. Thats why even though an MH has less lumens than an HPS it has a color temp that is more well suited for veg.
The 50w per sq ft was a general guesstimate for your average CFL's. Once you actually get into breaking it down i start hearing cantonese.

I'd just do your PVC grow room and get a 400w or 600w hps. I'd check out RandyRockets grow closet. he built it and i think something along those lines would work for you.
I'll put the link in a sec.



ere go https://www.rollitup.org/grow-journals/77942-my-first-grow.html

 

[MrFishy]

Also, you can use those cheap 4 ft fixtures sideways for side lighting, if needed.
Glad you considered my info. Grow on!

 

[Christian for Ganja]

Also, you can use those cheap 4 ft fixtures sideways for side lighting, if needed.
Glad you considered my info. Grow on!

Another great idea, which makes me want to incorporate a 3' 6" wide based to firmly secure the 4' fixtures into the sides of the PVC frame for side lighting. That would be economically feasible both in initial investment and monthly cash flow with electricity. So, if my PVC frame is 10' wide, divided by two (two 5' sections for vegging/flowering), I can make it 3'6" deep and drill the 4' light fixtures to the PVC on the side. I can stack both sides with side lighting (i.e. 3 on each side of the two five-foot sections) and create my more "inexpensive" lighting with the above lighting (e.g. HID).

Hmmm... I think I'll be more patient as I approach my setup. I have lots to think about. Of course, it could also be the sweet bowl I'm smokin'.

 

[Christian for Ganja]

Well shit they did math and what not. I'd say it's kinda more accurate. What is the light calculator for.....growing plants or for something else?

It's for plants. Go to .: Cannaversity. It's a helpful website in some regards (e.g. the math).

See lumens are just a measurement of light that we can see with our eyeballs. The plants actually use a much different part of the light. The spectrum is more important than lumens. Thats why even though an MH has less lumens than an HPS it has a color temp that is more well suited for veg. The 50w per sq ft was a general guesstimate for your average CFL's. Once you actually get into breaking it down i start hearing cantonese.

The Cantonese reference reminds me of Wayne's World. Was that intentional? See, the lighting information seemed to distinguish between the "spectrum" and the "lumen." I was trying to research that in my online library of ganja, but I couldn't find a reference to the distinction and difference between them with regard to lighting preference. But, again, it could be the great shit I'm smoking.

I'd just do your PVC grow room and get a 400w or 600w hps. I'd check out RandyRockets grow closet. he built it and i think something along those lines would work for you.
I'll put the link in a sec.



ere go https://www.rollitup.org/grow-journals/77942-my-first-grow.html

I'm checkin' out RandyRockets, now!

 

[blazin waffles]

LOL, no there was no prethought waynes world references. Funny though b/c its on right now!

Here was a post from my journal. Hopefully it will be useful!

Quote:
Originally Posted by RandyRocket

I know it's odd but a physicist at work gave my the formula.


Yeah, that's right - lumens are candela-steradians which is a measure of light times a unit of solid angle. If you double the number of lights you double the number of candelas, but you're essentially using the same (approximate) solid angle, so you have to account for area (which is a square unit) and so you have to take the square root. Lumens can be a poor measure for plants anyway, depending on the spectrum of the lamp. Lumens are really a measure of how bright something looks to the human eye and not how bright something looks to chlorophyll. If your sources all have a similar specral distribution then then it's a decent comparison, but 10,000 lumens of CFL doesn't necessarily equal 10,000 lumens of MH or HPS, for example.

^ if you look here, you see the absorption spectrum of chlorophyll A and B. From 400nm to 500nm is "blue" light, from 500-570 is "green", 580-600 is "yellow" , and 600-700 is "red" and beyond that is infrared.

During veg it's the blue peak that is most important and during flowering it's the red peak on the right. You see that there is almost no absorption by the leaf in the middle, which is green (and which is why plants look green!).

Lumens, however, measure light as seen by the human eye, which sees most dominantly in the green portion of the spectrum. Thus it's possible to have a very green light with a high luminous intensity but which doesn't have anything that a plant could ever use. It could almost use a new unit of measurement like plant-lumens, or even red-plant-lumens and blue-plant lumens - a number that tells you how bright a light looks to a plant, not to a human.

This is why you see some of these new LED grows which don't seem to have very bright sources, but which work really well because you can get LEDs tuned exactly to what chlorophyll wants - that's to say that the LED lamp spectrum looks much more like the chlorophyll absorption spectrum. It's all enough to twist your head in knots...

​

 

[pppfemguy]

did ur plants get any bushier dude??