Need to know what light to use?

420today

Well-Known Member

• Aug 27, 2009

• #1

I feel real dumb asking this but I have my plants in 12/12 useing CFL's!! I have my real lights setup but need to know what type bulb to use HPS or MH? I have my 2700K CFL's On them now!! Thanks!!

 

BeefSupreme

Active Member

• Aug 27, 2009

• #2

HPS is better for flowering

 

420today

Well-Known Member

• Aug 27, 2009

• #3

Thanks my friend I have both just need to know Thanks again!!

 

majek

Well-Known Member

• Aug 27, 2009

• #4

mh and hps are both better than cfl obviously, but most growers use hps for bloom because it penetrates more lumens per watt, and the orange spectrum "tricks" the plants to think its late summer/early fall

 

earlymorninstonepeomp

Well-Known Member

• Aug 27, 2009

• #5

Buuuuuuut,,,,,,dual spectrum is popular also. Experiment......you'll get diff opinions in here. I use 30 % blue in flower and super crop.....no complaints and love the output.
Good luck.

 

earlymorninstonepeomp

Well-Known Member

• Aug 27, 2009

• #6

majek said:

mh and hps are both better than cfl obviously, but most growers use hps for bloom because it penetrates more lumens per watt, and the orange spectrum "tricks" the plants to think its late summer/early fall

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Light cycle determines flowering. 12hrs tricks into thinking season is changing. You can flower with MH or CFL's.....but not till you go 12/12.

 

Gardener 09

Active Member

• Aug 28, 2009

• #7

i have been useing cfls, but i swiched em all out for daylight bulbs and am now going 12/12, need to find a timer, where is the best place to?

 

BeefSupreme

Active Member

• Aug 28, 2009

• #8

Gardener 09 said:

i have been useing cfls, but i swiched em all out for daylight bulbs and am now going 12/12, need to find a timer, where is the best place to?

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Well other then your local walmart, hydroponic stores have really good stuff with really knowledgeable people

 

Cr8z13

Well-Known Member

• Aug 28, 2009

• #9

Lowe's and Home Depot have them too. Got one for $5 at Lowes. You'll probably pay more if you go to a hydro shop.

 

tyke1973

Well-Known Member

• Aug 28, 2009

• #10

H.p.s is better for everthing to do with growing cannabis.If you are new too growing then make sure that your grow area temps are all bang on go for a 600 watt hps.The price of this light will be returned after the first grow.But i do like to renew the bulbs once a year for the full use of the light.

 

nuera59

Well-Known Member

• Aug 28, 2009

• #11

dont be silly and go for a 600w hps!

 

Brick Top

New Member

• Aug 28, 2009

• #12

earlymorninstonepeomp said:

Buuuuuuut,,,,,,dual spectrum is popular also.

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That is why the dual-arc MH/HPS HID bulbs were created. They put off both the MH light spectrum and the HPS light spectrum together and plants do appreciate it.

They are not available in every wattage HID light but if my memory serves me correctly they can be found for anything that is 400-watts or higher wattage.