First off, i enjoyed your article, but found a few things you can add, or seem to be not there maby do to having little real world data,
I really think there is a little misconseption on using CFL's to the greater extent... I believe there is a limit to it and or use....
The cons out way the pro's when it comes to cfls.....
Long story short, last year i found my outdoor area being compramized after many years of no worries, and lost all but 1, so i took and thus began my indoor growing ...... and like so many new to indoor found CFL able and ready for the task....
Since then I have run 2 successful grows using Just CFL's and although i found them to be very handy, there far from ideal, and during my current run, i have decided, to use CFL for the last time, (((except for future seedlings)))....
First in relation to lighting and the grow,
i was and just did a run using 15, 200 watt (rated 42 watts) CFL's at 4100k/4600k for a total of 3000 watts ( so thats 630kw per hour) and we have about 45000 lums spread in an area of 4x4 ,,,, I did this for veging but wiil have MH next time around,,,,,( I have 6 girls)
The truth, as i see it, is a few things, first Cost, as you can see i ran 630Kw per hr, running around 3000 watts, and only got around 45000 lums, which is not cheap, when you look at a MH or hps at 400 watts, (400 kw per hr, running at 50,000-53000 lums, you can see where you come to a point were CFL's no longer are convinent, or cheaper,,, and when you add the cost of 15 CFL at a color range of 4100k/4600k and then 15 at 2700 for flowering again cost says 1 400 watt HID set would run cheaper or be dead even...... ( and yes i have over 25 CLF lights, at about 6-10 bucks a light you can do the math.....)
As to heat, with over 3000 watts 15 self ballast lights tearing up my grow room, it was more difficult to cool my area then it is now that i have switched over to flower and am using a 400 and a 150 watt, HPS lighting ...
I think if one wishes to use CFL they are great to a point, where until you find your self in my position, where it no longer stands to be any gains but more of losses due to the size of a grow and total costs...
Some real truth here...Flowering...the big other is the size of a grow, I found in order for the plants to grow with tight buds, and get a max yield i could not do more then just 2 plants, with the said setup i was using, and again thats where HID just puts a beating on CFLs ..... in terms of penatration and the amount of plants in the same space and yield vers cfls....
Having said all of this, if i would have known from the very start , i would have just got a few cfls, for seedlings and moved to hid from the begining....
This is just my feeling and my experence using cfls, hey if its a 1 plant grow in a closet , you can grow a great plant and it could only cost a few bucks all around and do a great overall job, but in a reality, on a scale of more then 1 plant, and to bring those or that plants to there full potential, there is just no use for CFLs except for getting the seedlings started.....
So i really think that there is a misconseption or a bit of a misleading info in regards to CLFs, thats my take on it, but then again when i was growing 2 of the most yummy smoke-able girls on the planet, i wasnt thinking about cost or this or that i was thinking , how many days till my big fat chubby girls were ready,......
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Just in case , i have a sealed grow room with all the trimings, with enviroment controls, with incoming and outgoing exhaust and co2..... All my girls are in soil....and always will be....