lighting guidance plz

I

irishman2010

Member

• Mar 13, 2010

• #1

hi i using a full room sized 3.5meters x 6meters would six 6oowatt hps do fine im kitting it all out in dwc ??? and how many plants should i use im gona veg for 5 weeks thanks

 

Pipe Dream

Well-Known Member

• Mar 13, 2010

• #2

If your planning on utilizeing the whole room for flowering your going to need a lot more lamps. A 600watt hps will cover about 1 square meter proly need about 9.

 

That 5hit

Well-Known Member

• Mar 13, 2010

• #3

i would do 6 plant and hang light vertical

 

I

irishman2010

Member

• Mar 13, 2010

• #4

ok thanks was going corden on 2meters for vegging purposes, how many lights do you rec 8? and how many plants i want massive yeild ive grown a bit b4 using two eco systems bt it a pain in the ass

 

desertrat

Well-Known Member

• Mar 13, 2010

• #5

more like eight 1000 watt lights. sorry, don't know the metric equivalents but minimum light for weed is 3,000 lumens per square ft with the recommended amount 7,000 - 10,000 lumens per square ft. six 600 watt lights gives you about 2,500 lumens per square foot. eight 1000 watt lights gives you 5,000 lumens per square foot.

 

I

irishman2010

Member

• Mar 13, 2010

• #6

orite how come ppl use 400watt hpsin one meter sq flowering i thought by using 8 600wt hps each one meter sq wud b great surrounded in reflective mylar

 

desertrat

Well-Known Member

• Mar 13, 2010

• #7

irishman2010 said:

orite how come ppl use 400watt hpsin one meter sq flowering i thought by using 8 600wt hps each one meter sq wud b great surrounded in reflective mylar

Click to expand...

a 600 watt light is great for one square meter but you have 21 square meters not 8.

the people who use 400 watt for a square meter are shooting for 3,000 lumens per square foot.

see https://www.rollitup.org/grow-room-design-setup/311470-how-can-we-not-know.html if you're interested in a post on choosing the right lighting.