cfl lighting
- Thread starter dak1b
- Start date
krustofskie
Well-Known Member
Depends on the size of the CFL lights you want to use. A single 6500 k 300w cfl would veg them easy but to flower I would like a couple 2700k, 200w to 300w, to get better coverage.
Roseman
Elite Rolling Society
You determine LIGHT Needed by Square footage of the grow area, and how many lumens.
A CFL emits about 60 to 70 lumens per watt.
The rock bottom bare minimum to get a plant to live healthy is 3000 lumens per sq ft. To be VERY HEALTHY and Happy and THRIVE , you need 7,000 lumens per sq foot, up to 10,000 per sq ft.
First determine the square footage of your area (example in a 4 foot by 4 foot area, there is 16 square feet, 2 by 2 feet is 4 Sq ft. ) Multiply the sq footage by the number of lumens you want to try to achieve.
Read this:
CFL Tutorial -
A CFL emits about 60 to 70 lumens per watt.
The rock bottom bare minimum to get a plant to live healthy is 3000 lumens per sq ft. To be VERY HEALTHY and Happy and THRIVE , you need 7,000 lumens per sq foot, up to 10,000 per sq ft.
First determine the square footage of your area (example in a 4 foot by 4 foot area, there is 16 square feet, 2 by 2 feet is 4 Sq ft. ) Multiply the sq footage by the number of lumens you want to try to achieve.
Read this:
CFL Tutorial -
krustofskie
Well-Known Member
The logic of science +rep
dak1b
Well-Known Member
Hairy Bob
Well-Known Member
7-10 per sq ft, read Roseman's post, that's a guy who knows his shit right there.
You realise they are the wrong colour temperature for growing? They are right for flowering (although very low wattage) but to start with you want 6500k ideally, although 5000k does work.
You realise they are the wrong colour temperature for growing? They are right for flowering (although very low wattage) but to start with you want 6500k ideally, although 5000k does work.
tone702
Well-Known Member
dude if your doing a cfl grow your obviously not growing pounds and pounds... use like 4 or 5 5500k 27watt(for veg) and then get yourself 68watt giant cfl(2700k) emits 4200 watts each..so get like 4 of those and some smaller 2700ks for the side lighting and you should get a descent yield.. youll be surprised!
krustofskie
Well-Known Member
This will veg 6 plants on its own no problem (I know from experience as I use one)
http://cgi.ebay.co.uk/300w-Blue-Spectrum-CFL-grow-light-for-Hydroponics_W0QQitemZ280374164137QQcmdZViewItemQQptZUK_HomeGarden_Garden_PlantsSeedsBulbs_JN?hash=item41479a3aa9&_trksid=p3286.c0.m14&_trkparms=65:12|66:2|39:1|72:1121|293:1|294:50
I would use a couple of these for flowering (Dont know from experience as I only use HPS for flowering)
http://cgi.ebay.co.uk/250w-8U-CFL-GROW-LAMP-LIGHT-2700k-RED-FLOWERING-STAGE_W0QQitemZ230339521609QQcmdZViewItemQQptZUK_HomeGarden_Garden_PlantsSeedsBulbs_JN?hash=item35a14e2c49&_trksid=p3286.c0.m14&_trkparms=65:12|66:2|39:1|72:1121|293:1|294:50
http://cgi.ebay.co.uk/300w-Blue-Spectrum-CFL-grow-light-for-Hydroponics_W0QQitemZ280374164137QQcmdZViewItemQQptZUK_HomeGarden_Garden_PlantsSeedsBulbs_JN?hash=item41479a3aa9&_trksid=p3286.c0.m14&_trkparms=65:12|66:2|39:1|72:1121|293:1|294:50
I would use a couple of these for flowering (Dont know from experience as I only use HPS for flowering)
http://cgi.ebay.co.uk/250w-8U-CFL-GROW-LAMP-LIGHT-2700k-RED-FLOWERING-STAGE_W0QQitemZ230339521609QQcmdZViewItemQQptZUK_HomeGarden_Garden_PlantsSeedsBulbs_JN?hash=item35a14e2c49&_trksid=p3286.c0.m14&_trkparms=65:12|66:2|39:1|72:1121|293:1|294:50