how many plants do you have...how big are they...then we can do the math

SO,,,,,,,, are you a girl , or are you saying that because that girl you fucked lied to be nice and said you where big>??

__________________
staring into the psylocybic shit-abyss

I hope this diagram helps with understanding how lux and lumens add.

Lumens are a measure of photons, weighted to the sensitivity range of the human eye. Photons are the basic unit of light. The more powerfull the light, the more photons are emitted.

As a photon is a unit of measurement, a single photon from a CFL is exactly the same as a single photon(of the same wavelength/colour) from a HID or any other light source. It has the same amount of energy and will travel just as far.

The reason CFLs have poor 'penetration' is due to the fanning out of the photons. The further the target is from the source, the greater the distance between photons, which causes less photons to land on the target, which results in less lumens/lux/brightness at the target.

As you can see from the diagram, the HPS makes up for distance by saturating the area with far more photons than the CFL.

As the diagram also shows, lining lamps up side by side results in more photons striking the target area, which means more lumens/lux/brightness at the target.

Attached Images

Lamp_Photons.jpg (107.7 KB, 47 views)

hey folks please answer me this...do you recomend 1 cfl that is (105Wat 5000k full spectrum equivalent to 420watt ind) while maybe rotating the plants or maybe like 4 to 6 42Watt cfl's or even like 10 20Watt for vegging about 4 babys in a room the size of small bathroom...4x6x8height......thanx

Ok, first up, ignore the 'equivalent' ratings. As you already know, that is for equating to incandescents. It is for determining which lamps to choose for your home lighting when upgrading to CFLs. No one grows under incandescents, so its a moot rating. What you are better off doing is equating the wattage to a HID. So 105 watt CLF = 105 watt MH or HPS. In reality, your HPS or MH is generally more efficient, so the CFLs will be putting out less light for the wattage, but its a more usefull comparison.

Second, thats nowhere near enough light for your growspace. Plants like about 10000 lumens/square foot(footcandles) in flowering. Lets assume your 105w bulb puts out 6000 lumens, thats only enough light to cover 0.6 sq.ft. You said your floor is 6x4? 24 sq.ft? You would need about 40 of those lamps to cover that area in flower.

Seedling/clone and veg dont have such high requirements, and you can flower on a lot less, but 250 footcandles(your light, if used to cover the entire room) will only be usefull for the plants photoperiod response, and not much(if anything) in the way of growth.

Question, I'm using florescent, I know I need a cool and a warm I have a daytime bulb (cool). Do I want the plant/aquarium or the kitchen/bathroom?

Im wondering if 5 x 13w cfl lights and 2 x 40w plant and aquarium fluorescent bulbs will work for the budding stage?

__________________

fine , dont

__________________

sweet , i have 16000 lumens in ma veg cab which is 3ft long by 2ft high and 2ft deep !! the plants are growing way better thus far then my previous batch under a 430whps

__________________