I did a little experiment recently, using a 4' , 2-tube, flourescent fixture.
In one socket I put a 'plant and aquarium' light, wondering if those things are worth the $8 each they cost. Oh, and BTW they put out a pinkinsh light.
In the other I put a cool white tube.
I centered the seedlings in a row directly below the fixture.
Within 24 hours, all the seedlings were bending and stretching towards the cool white side.
I guess they just like it better!!!!
stinkyattic Reviewed by stinkyattic on . which lights when? whats the neccessary light for each stage of growth? i read on one site that a healthy plant needs 3000 lumens per sq foot. and that hps provides the best color range. i proposed a 430w bulb for a pair of 3' ladies in a 16 sq ft cab, and was warned that heat would be too much. can i achieve the same with cooler lights? people keep saying CFL's, but that wont provide the necessary lumens. do lighting requirements change as plants mature? i've seen cab plans that include seperate compartments for Rating: 5