trademarks of Cree, Inc.

7

XLamp CXa1820 LED

relative luminous fluX

The relative luminous flux values provided below are the ratio of:

• measurements of CXA1820 at steady-state operation at the given conditions, divided by

• Flux measured during binning, which is a pulsed measurement at 550 mA at T

For example, at steady-state operation of Tc = 55 °C, I

below. A CXA1820 LeD that measures 2100 lm during binning will deliver 2940 lm (2100 * 1.4) at steady-state operation

of Tc = 55 °C, I

0%

20%

40%

60%

80%

100%

120%

140%

160%

180%

350

450

550

650

750

850

950

1050

Current (mA)

Tc = 25 °C

Tc = 55 °C

Tc = 85 °C

Tc = 105 °C