LED light needed For a Room Calculator

Calculate Number of Fixtures









Formula

The formula to calculate the number of fixtures is:

\[ \text{Number of Fixtures} = \frac{E_{av} \times L_{room} \times W_{room}}{95 \times 0.32 \times \text{Wattage}} \]

Where:

Note: 95 is the LED luminous efficacy, and 0.32 is the coefficient.

Definition

Average illuminance is the total luminous flux incident on a surface, per unit area. It is measured in lux (lx).

Power is the rate at which energy is used or produced. It is measured in watts (W).

Example Calculation

Let's assume the following values:

Using the formula for the number of fixtures:

\[ \text{Number of Fixtures} = \frac{300 \times 5 \times 4}{95 \times 0.32 \times 10} \approx 1.9737 \]

The number of fixtures is approximately 2.

Conversion Chart

Average Illuminance (lux) Length (m) Width (m) Wattage (W) Number of Fixtures
300 2 2 10 4
300 2 4 10 8
300 4 2 10 8
300 4 4 10 16
300 2 2 15 3
300 2 4 15 6
300 4 2 15 6
300 4 4 15 11
300 2 2 20 2
300 2 4 20 4
300 4 2 20 4
300 4 4 20 8
750 2 2 10 10
750 2 4 10 20
750 4 2 10 20
750 4 4 10 40
750 2 2 15 7
750 2 4 15 14
750 4 2 15 14
750 4 4 15 27
750 2 2 20 5
750 2 4 20 10
750 4 2 20 10
750 4 4 20 20
300 2 2 10 4
300 2 4 10 8
300 4 2 10 8
300 4 4 10 16
300 2 2 15 3
300 2 4 15 6
300 4 2 15 6
300 4 4 15 11
300 2 2 20 2
300 2 4 20 4
300 4 2 20 4
300 4 4 20 8
300 2 2 10 4
300 2 4 10 8
300 4 2 10 8
300 4 4 10 16
300 2 2 15 3
300 2 4 15 6
300 4 2 15 6
300 4 4 15 11
300 2 2 20 2
300 2 4 20 4
300 4 2 20 4
300 4 4 20 8
550 2 2 10 8
550 2 4 10 15
550 4 2 10 15
550 4 4 10 29
550 2 2 15 5
550 2 4 15 10
550 4 2 15 10
550 4 4 15 20
550 2 2 20 4
550 2 4 20 8
550 4 2 20 8
550 4 4 20 15
500 2 2 10 7
500 2 4 10 14
500 4 2 10 14
500 4 4 10 27
500 2 2 15 5
500 2 4 15 9
500 4 2 15 9
500 4 4 15 18
500 2 2 20 4
500 2 4 20 7
500 4 2 20 7
500 4 4 20 14
500 2 2 10 7
500 2 4 10 14
500 4 2 10 14
500 4 4 10 27
500 2 2 15 5
500 2 4 15 9
500 4 2 15 9
500 4 4 15 18
500 2 2 20 4
500 2 4 20 7
500 4 2 20 7
500 4 4 20 14
150 2 2 10 2
150 2 4 10 4
150 4 2 10 4
150 4 4 10 8
150 2 2 15 2
150 2 4 15 3
150 4 2 15 3
150 4 4 15 6
150 2 2 20 1
150 2 4 20 2
150 4 2 20 2
150 4 4 20 4
200 2 2 10 3
200 2 4 10 6
200 4 2 10 6
200 4 4 10 11
200 2 2 15 2
200 2 4 15 4
200 4 2 15 4
200 4 4 15 8
200 2 2 20 2
200 2 4 20 3
200 4 2 20 3
200 4 4 20 6
200 2 2 10 3
200 2 4 10 6
200 4 2 10 6
200 4 4 10 11
200 2 2 15 2
200 2 4 15 4
200 4 2 15 4
200 4 4 15 8
200 2 2 20 2
200 2 4 20 3
200 4 2 20 3
200 4 4 20 6
500 2 2 10 7
500 2 4 10 14
500 4 2 10 14
500 4 4 10 27
500 2 2 15 5
500 2 4 15 9
500 4 2 15 9
500 4 4 15 18
500 2 2 20 4
500 2 4 20 7
500 4 2 20 7
500 4 4 20 14
700 2 2 10 10
700 2 4 10 19
700 4 2 10 19
700 4 4 10 37
700 2 2 15 7
700 2 4 15 13
700 4 2 15 13
700 4 4 15 25
700 2 2 20 5
700 2 4 20 10
700 4 2 20 10
700 4 4 20 19
800 2 2 10 11
800 2 4 10 22
800 4 2 10 22
800 4 4 10 43
800 2 2 15 8
800 2 4 15 15
800 4 2 15 15
800 4 4 15 29
800 2 2 20 6
800 2 4 20 11
800 4 2 20 11
800 4 4 20 22
1100 2 2 10 15
1100 2 4 10 29
1100 4 2 10 29
1100 4 4 10 58
1100 2 2 15 10
1100 2 4 15 20
1100 4 2 15 20
1100 4 4 15 39
1100 2 2 20 8
1100 2 4 20 15
1100 4 2 20 15
1100 4 4 20 29
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