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"What about two 125w CFL for veg and 125w for flowering. I know the 125watts use a mogul base."
Extra bulbs will help - they will allow you to cover more area, but will not give you more depth penetration or much better intensity. You still need very short plants, some type of stem training.
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"Would having two 125w CFLs as well as a fan running overload standard apartment wall outlet over a large period of time or would it give off a suspicious power signature you think?"
250 watts is nothing for power use, my TV is rated for 125 watts. If you're concerned about power use for whatever reason consider a small HPS, one 150 watt HPS spot light from Home Depot will put out 3 times the lumens and better intensity than 2 x 125 watt CFLs. As well, the bulbs are more efficient and will give off less heat, the ballast is remote and can be kept out of the grow area for further heat reduction. The HPS bulb gets hotter than the CFL, in a small area, but there is more heat given off by CFLs for the same wattage. Watts In = (Light + Heat) out
250 watts CFL x 12 hours per day x 365 days per year = 1,095 kilo watt hours per year.
Just between the usage of a washing machine and a fridge. If you got a less expensive 150 watt HPS spot light from Home Depot:
150 watts HPS x 12 hours per day x 365 days per year = 657 kilo watt hours per year.
If you bumped up to a 250 watt HPS and ran it for 8 hours a night - when rates are cheaper and no one is checking the power meters for usage:
250 watts HPS x 8 hours x 365 days per year = 730 watts <<< this would be my choice: less heat; less power; better yield; better potency.
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IMHO it is better to use twice the wattage for half the time period, with a light mover. The extra intensity will push the plant's light receptors to send chemical signals to the buds to spare no horses when growing. Deeper penetration into the canopy, better developed buds lower on the plant.
To cut down on heat in my attic grow room this summer I experimented with 6 light / 18 dark, something I picked up from Subcool's forum. Yield is reduced, flower time extended, but potency stays the same and yield is perhaps 75% with 50% of the power use.
Another variation is 6 light / 12 dark - an 18 hour day. This gives the plants their regular 12 hours darkness and gives us 4 x 18 hour days every 3 x 24 hour days. Reduced yield but reduced flowering time as well. This style of growing requires a 7 day timer and the light period that you can work in the garden changes, you'll need a Green Eye lamp.
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"That first chart, is that equivalence in PURs or just Lumens? Because I noticed one 125w CFL is roughly equal to EIGHT 40w CFL?"
It's in lumens but for practical purposes at this stage of your decision making consider PUR and lumen to be the same.
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