Hello,

New to the forum.

Have an inquiry about lighting as was tossed some new information and I am left cratching my head …

Example :

20 x 12 room

4x4 rule for spacing

15 plants

Lights required ?

Following my belief and practices, I would use 15 600 W HIDs, using 1 light per 4x4 area to achieve optimal lighting.

Received an article which was to explain proper watts and lighting required.

- Length and width of room

20x12 = 240 sq feet - Divide this number by 4 (saw feet of plant)

Answer 60 sq feet Canopy - Multiply 60 with 65 (ideal wattage of 65w/sq.ft)

Answer 3,900 Watts

From this, I would only require 7 600W Hid’s to cover entire Canopy with optimal lighting

*** or 4 1000W HID’s if that’s your preference.

Is this correct? Am to assume I will get the same end results (12-15 lbs) off half the lights ???

Thanks G