400w Metal Halide for first month of flowering?

[smokenss]

that might b the go then use flouros untill the plants start to flower then the hps or both together. that might help keep time in the flower room down to 6-7 weeks insted of 8-9 witch would means another crop or 2 a year:smokin:

smokenss Reviewed by smokenss on 12-08-2007. 400w Metal Halide for first month of flowering? Okay, right now i have a 600w HPS which covers a 3 x 3 area. I figure i can fit 6 comfortably. I was wondering... could i double what im doing by getting a 400w metal halide for the first 4 months of flowering then switch to the 600w hps for the the main budding phase. Someone was telling me that plants grow denser with sturdier stems under MH light, and since the first 3 -4 weeks is stretching could MH light help control stretch? Could a 400w MH keep up with 6 medium sized plants for a month Rating: 5

[Earthy Dank]

Would the blue spectrum make it more leafy? Would i be better to make it full HPS after 4-5 weeks? It makes sense... blue promotes leaf and stem growth....

[ButchieYost2001]

What about a 2' X 4' X 8' area(closet) with a 400w hps and a 250w MH for flowering? Moving plants around every 3 or 4 days for an even light distribution, provided the temps remain within an acceptable range? I ask this because I have 3 lights with 2 closets - 400w hps, 250w mh and enough cfl's to light-up a small village!!

[Earthy Dank]

What about a 2' X 4' X 8' area(closet) with a 400w hps and a 250w MH for flowering? Moving plants around every 3 or 4 days for an even light distribution, provided the temps remain within an acceptable range? I ask this because I have 3 lights with 2 closets - 400w hps, 250w mh and enough cfl's to light-up a small village!!

This is good if you have some badass ventilation or you can keep the door open all day. A 400w and a 250w would give you about 81 watts per Sq.Ft. Which 81 watts per square foot of full spectrum lighing would be badass... but difficult to keep at a consistent temp. I would just use the HPS (400/8=50 watts per sq) with a few cool blue CFLs.

[OHIOGOTPURPLEKUSH]

What is a rail? how do they work? and how much do they cost?

[Earthy Dank]

What is a rail? how do they work? and how much do they cost?

Its a rail... with a motor that moves the light very slowly so you light covers a larger area. And since the light moves you can keep it much lower to the canopy without burning it. And they cost around 50-200 dollars depending on where you look and what kind.