A 400 watt MH or HPS puts out like 40,000-53,000 lumens. The bulb you have there puts out 9500. I know it's a combo of things that make lights grow plants well, but the one thing that works is 50 watts per square foot. Of any light ( besides green of course). The proper spectrum is important to maximize the amount and quality of the flower, but a bright light will grow a plant. Can you give some measurements of the area you would like to grow in, and then it will be easier to compute accurate lighting numbers.
Peace,
p
PlantHeadJ Reviewed by PlantHeadJ on . High Output Compact Fluorescent - 200 watt The more time I spend on the site the more I think about growing indoors at some point in time. Does anyone have expirience with the below mentioned bulbs. They run about $70 with shipping. If I ran 4 of these bulbs I should be able to cover a decent area correct? Product Description High output U-tube compact fluorescent, 200 watt, 5000K, 85 CRI. Mogul screw in base, 120 volt. Optional Miro 4 reflector available. Excellent for photography, plant grow, shop, light therapy, etc. Length Rating: 5