Daboss said:
Oh im using to 120 watt spot grow, i know its kind of ghetto put at least next gro will be with an Hps. Thx for ur help Stoney Bud ive read alot od=f ur teachings.
You're very welcome for anything I can do to help you. That's what this forum is all about.
When you learn a trick or something that will keep someone else from having the "Perfect Grow", you can help all of us by posting it. Shared knowledge is the worlds most powerful tool.
With lights, "Lumens" and "Spectrum" are the key values you need to consider most to making it right.
"Lumens" are a universal method of rating a lights strength. It's the strength of light measured on a globe 12 inches in diameter, 12 inches from the source of the light. Most MJ will grow some bud with as little as 1500 lumens per sq ft of area. Most MJ is capable of using as much as 5000 lumens to develop buds as large and potent as that particular plant is able to produce.
The "Spot Flood" light that you're using isn't considered useful for several reasons. It produces too much heat per/lumen to be able to gain enough usable light from it to do much good and it's spectrum is lacking in the values most needed for plant growth.
You're on the right track by getting an HPS. They have a great spectrum for plants and the heat/lumen ratio is very good. Now you can use enough of HPS light to maximize your plants potential.
Here's a factor you may not see too much in discussion. If you use four 250 watt HPS instead of a single 1000 watt setup, you gain an advantage of being able to light your entire crop more evenly. As I said above, lumens are measured 12 inches from the light. They decrease dramatically as you get further and further from the light. If you set a 1000 watt HPS in the center of your grow and you have 5000 lumens directly beneath the light, then at the edge of your crop, you may have only 2000. If you instead use four 250's spaced evenly over your crop to provide 5000 lumens beneath each light, well, the result is obvious to anyone; you'll have 5000 lumens or close to it, over the entire area. In this case, bigger is not always better. A 250 watt HPS needs to be about 12 inches from the plant tips. This will also allow you to use the rated lumens on the package to space your lights. No math is necessary.
Good luck in all your grows and I look forward to seeing your advice as you learn more and more about MJ growing. Every day, someone comes into this group that has never done anything with MJ, but they want to start learning. Right after your first grow, you'll be able to help them.