Watts per square foot LEDs

Grow Cycle
1

What is the number range? I’ve seen from 20-100w per foot. Just seeing where I’m at in this and does it just stop at 100?
Confused with too much wrong info. Ggggrrrrrr!!!

2

you can never give it to much light watch you the heat 70 to 85 degrees and good ventilation :relieved:

1 Like
3

Lol I got you, breathe easy my friend!

Recommended wattage for LED is 25w per square foot.

Recommended wattage for HID is 50w per square foot.

Hope this helps :v:

3 Likes
4

Is there too much? With my 9 clf’s it wasn’t heat but lumens that started to fry them. I eventually want 1 more hydro 300w and it would make watts per sq ft 108

5

I only ask cause my next photoperiods are dr grinspoon, blue dream, moxie viper cookies and Red Leicester. Want lights on point for this grow. 2 are long flower.

1 Like
6

:sunglasses:lol nothing is stronger than the sun so the extra light would be fine if the femp is ok and good ventilation

2 Likes
7

Thats right great minds think and read alike lol my tent is 4x2x6 LED true watts 544 so im at almost 70 watts per square foot or my math is broken like my bank account

2 Likes
8

@Brian091180 is your numbers run

530×942 37.8 KB

This is mine

530×942 37.6 KB

Square foot area yours is 4x2=8
Mine. 3x3=9

1 Like
10

Yep thats it

11

Nice. I’m going to get another 145w actual and get it to 108 whilst spending more money

1 Like
12

One thing i just seen it say watts per fixture 544
Each light draws 272 watts

1 Like
13

i hate math. Off to figure this. Cause I get 2 numbers

1 Like
14

So damn math. I’m off and guess more money will be off too

1 Like
15

you will do fine keep trying you learn from mistakes it will make you a better grower :innocent:

3 Likes
16

This should take care your question

Will
Your plants will
REQUIRE ~25 WATTS/SQ FT (ACTUAL LED WATTAGE)

ASSUMING 1.0 SQ FT/PLANT

of Plants Square Feet Recommended LED Wattage

     1               1.                          25

      2.              2.                         50

      4.              4.                         100

      6.               6.                        150

      8.               8                         200

      10.            10                        250

ASSUMING 2.0 SQ FT/PLANT

of Plants Square Feet LED Wattage

       1.               2.                           50

        2               4.                          100

        4.               8.                         200

        6.              12.                        300

         8.              16.                       400

         10.             20.                      500

ASSUMING 4.0 SQ FT/PLANT

of Plants Square Feet Recommended LED Wattage

        1.               4.                       100

         2.               8.                       200

         4.               16.                     400

         6.               24                       600

          8               32.                      800 

          10             40.                     1000

Quick Chart: Recommended LED wattage for high light plants (25 actual watts/sq ft)

1’ x 1’: 25 watts

2’ x 2’: 100 watts

3’ x 3’: 225 watts

4’ x 4’: 400 watts

5’ x 5’: 625 watts

6’ x 6’: 900 watts

6 Likes
17

as of right now, i have some good quality sun like full spectrum lights (spider farmer 4000s) 460 actual watts per light and sun like supplemental lights bars to fill in the cracks , im running 51 actual watts per sq ft , but i want that top quality light as im running co2 , does this seem like a proper amount or are the pros running wayyy more leds watts per sq ft ?