Western
Seed Co.

Grow Calculator

Grow Calculator

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Dli Calculator

Tip

Try shifting your DLI between stages as smooth as possible.

RECOMmENDED LED WATTAGE FOR SPACE CALCULATOR

Tip

Always choose higher wattage model than recommended here. Powerfull fixtures will always work more efficiently and will have better radiator. This will ensure long life of your fixture.

PPF, PPE and PPF/$

Tip

Even though PPF/$ is the most important metric for choosing the light, it is also important to pay attention to the driver, as this part fails first in 99% of cases.

LUX CONVERTER

Tip

To calculate the LUX coefficient you need to:
1) Find the most central reading on a PAR map for a fixture that you have.
2) Use luxmeter to measure light in the center of the lamp at a distance identical to the manufacturer’s PAR map.
3) Enter both values into the calculator.

Calculate LUX for environmental conditions table

Days
Stage
Leaf t. (C)
RH (%)
PPFD (µmol m2 s)
Lux (lumen/m2)
Photo. (hr. light)
Until strong roots
Clones
25-27 (26)
76-82
125
11625
18
Until first real leaves
Seeds
25-27 (26)
76-82
250
23250
20
7
Early Veg.
25-27 (26)
70-74
450
32550
20
14
Late Veg.
25-27 (26)
70-74
600
41850
20
21
Early Bloom
26-28 (27)
66-72
750
69750
12
21
Mid Bloom
26-28 (27)
62-68
850
79050
12
14-21
Full Bloom
26-28 (27)
60-66
950
88350
12
11
Late Bloom
25-27 (26)
56-62
800
74400
12
3
Late Bloom 2
24-26 (25)
54-60
600
55800
10

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