Type III (61 Watt Cool White) - Light Measurement Data

LM-79 Certified

Iso-Illuminance Chart (fc)

Intensity Distribution Curve (cd)

Example shown: 25 ft Mounting Height

Spacing of each box is equal to mounting height in feet.

Ex: 40ft mounting height = each box is 40ft, 30ft mounting height = each box is 30ft

Iso-Illuminance Chart (fc)

Intensity Distribution Curve (cd)

Example shown: 35 ft Mounting Height

Type III (121 Watt Cool White) - Light Measurement Data

LM-79 Certified

www.dialight.com

Iso-Illuminance Chart (fc)

Intensity Distribution Curve (cd)

Example shown: 35 ft Mounting Height

Type III (182 Watt Cool White) - Light Measurement Data

LM-79 Certified

- Location of streetlight

Mounting

Height

Multiplier

10

6.250

15

2.778

20

1.563

25

1.000

30

0.694

35

0.510

40

0.319

45

0.309

50

0.250

Mounting

Height

Multiplier

10

12.250

15

5.444

20

3.063

25

1.960

30

1.361

35

1.000

40

0.766

45

0.605

50

0.490

Mounting

Height

Multiplier

10

12.250

15

5.444

20

3.063

25

1.960

30

1.361

35

1.000

40

0.766

45

0.605

50

0.490

0.01

0.02

0.05

0.1

0.2

0.5

1.

ETL Intertek certified test performed to IES LM-79-08 standards

ETL Intertek certified test performed to IES LM-79-08 standards

ETL Intertek certified test performed to IES LM-79-08 standards

0.01

0.02

0.05

0.1

0.2

0.5

1.

0.01

0.02

0.05

0.1

0.2

0.5

2.

Spacing of each box is equal to mounting height in feet.

Ex: 40ft mounting height = each box is 40ft, 30ft mounting height = each box is 30ft

- Location of streetlight

Spacing of each box is equal to mounting height in feet.

Ex: 40ft mounting height = each box is 40ft, 30ft mounting height = each box is 30ft

- Location of streetlight