Light question

Vega

Active Member
how much light is needed to flower 3 plants in a medium size fish tank with lots of reflective paper (mylar?)? the lights would be no more than a few cm away from the plants. The plants will have a total of about 80w and about 4000 lumens during vegitative stage. for the flowering stage the plan is a total of 140w and 8,000 lumens. because the light placement will be only a few cm away from the plants is it still necessary to purchase aditional lights?:joint::mrgreen:
 

carl08

Well-Known Member
ive got 7 cfls all at 20 watts but all of them 2gether will make 11000 lumans, ive got 2 cheese plants but its my first time aswell, hope this helps let us no m8t how u get on(peace)
 

SunnyD

Well-Known Member
ur gonna need alot of lights......i started with a cfl grow...I flowered 3 plants with 13 soft white cfls, used around 300w,,,,looked ok....picked up a 250w hps 33000 lumens and it went crazy,,,1 thing i noticed well first i'm using less wattage and also the heat was lower....my closet was 90-100 with cfl and eve since adding the hps its 83-87.
 

six8

Well-Known Member
vega- im gettin ready for my 1st cfl grow. from what ive been studyin and hearin 9 cfls should definintely work and of the 9 2should be warm cfl and 7 white. thats for veggin. for flowerin consider 7 warm then 2 white cfl. the more watts the better. lumens for veggin should b 6500k and for flowerin and for flowerin 2700k. other than that look @ any and all othr cfl grows and compare. take your time and dont let it rattle your brain too much
 

six8

Well-Known Member
sunny- how big a space were u workin wih and were u able to get temps down w/cfls
 

SunnyD

Well-Known Member
sunny d-so u would have used an hps from the jump not cfls

for sure.... i flowered for 6 weeks with cfls,, 3weeks with hps and the difference was crazy, most def flower hps from start to finish.
 

SunnyD

Well-Known Member
sunny- how big a space were u workin wih and were u able to get temps down w/cfls

my closet is 3x2x6.... what i tried to do was always leave the door cracked while lights were on, but i had a bunch of frozen water bottles in the freezer and i would place one infront of my fan and have it blow cold air in the closet
 
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