lumens help!

[DE.Db33t]

How many lumens are needed for clones and two mothers

[locomark]

Well,

I would say you're going to want a least 250watts on the mothers. The clones are going to depend on how many clones your working with.

Loco

[DE.Db33t]

They are in the same room

[Binzhoubum]

OK, I go by a simple rule.
50 watts per sq. foot at least.
So if you have a 400 watt light.
Thats a 2 by 2 foot area to grow in.

As far as lumens go, I think 2,000 is the bare minimum you would want per square foot. 3,000 - 5,000 lumens per square foot is better. The higher the lumens the better the grow, theoretically speaking. But I think for indoor growing 4,000 - 5,000 per square foot is ideal.

BTW, I can't quite remember if it is square foot or meter...

:smokin:

[HARDDON]

Minimal Lumens for survival: 2,000 p/sq. ft.
Minimal Lumens for good growth: 5,000 /sq. ft.
Minimal Lumens for Max growth: 7,500 / sq. ft.

Watts are meaningless without factoring lumen AND kelvin temp output of lighting.

Lumens
Kelvin Temp
Distance from Canopy

All work together.

Good Luck.

[UMrocksmysocks]

my grow cab is 18"x30" which is a little under 4sq ft and i have a 400w 55k lumen bulb in there... so thats... what... 14k/sqft :) my plants will be happy

[DE.Db33t]

Im still a bit confused. In a video i saw he had three two bulb fixtures that where four foot flourescents for his two mothers and clones. How much lumens is that?

[4x5]

4ft floros don't get much more than 4000 lumens of output. The ones I have are only 3400lumens/per tube(used as side-lighting).

[Pothead4204life]

yeah 5000 lumens per sq fooot is gooood.........but if u can get more go for it.....

[yoyohunter]

4 40 watt HID Bulbs will only get you about 1900 lumens per bulb so 9600 lumens, Which is the same that I'm running just until I put them under the 400w HPS which gives off between 45000 and 55000 depending on the bulbs. Which is more than enuff for a 5 x 5 ft space. :) Peace

[s12fever]

4ft floros don't get much more than 4000 lumens of output. The ones I have are only 3400lumens/per tube(used as side-lighting).

thats a lie.....mine puts out over 8,000 lumens, does have double-tubes though

[bongerstonerd00d]

IN a 25 sq ft grow space aint much at all. You're gettin all of 2200 lumens per sq. ft. More light equals bigger buds:rasta: At least thats what the folks here say that grow the muther crops of fine gourmet herb:dance:



b0nger