Issue B.8 3/09

Page 8 of 10

OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.

OPTEK Technology Inc. —

1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 visibleLED@optekinc.com www.optekinc.com

Typical Electro-Optical Characteristics Curves

1.0

0.8

0.6

0.4

0.2

0.0

780

380

430

480

530

580

630

680

730

Wavelength (nm)

Wavelength Characteristics

Lednium Series Optimal I

OVTL01LGA Series

0

100

200

300

400

500

1.72.2

2.73.2

3.7

Voltage (V

Forward Current vs. Forward Voltage

Amber

Red

Green

Blue/White

Wavelength Characteristics

1.0

0.8

0.6

0.4

0.2

0.0

780

200

300

400

500

600

700

Wavelength (nm)

—— Cyan

1.0

0.8

0.6

0.4

0.2

0.0

Wavelength Characteristics

780

200

300

400

500

600

700

—— Daylight White

Wavelength (nm)

Wavelength Characteristics

Wavelength (nm)

1.0

0.8

0.6

0.4

0.2

0.0 200 300

500

400

600

700 780

—— Cool White

Wavelength (nm)

Wavelength Characteristics

780

1.0

0.8

0.6

0.4

0.2

0.0

—— Warm White

200

300

400

500

600

700