CXA2 datasheet(8/15 Pages) CREE

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XLamp® CXa2 Studio LEd

relatiVe luminOus Flux - COntinued

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

• Measurements of CXA2 Studio at steady-state operation at the given conditions, divided by

• Flux measured during binning, which is a pulsed measurement at 1200 mA at T

J = 85 °C for the 72-V CXA2 Studio LED.

Using the 72-V CXA2 Studio LED as an example, at steady-state operation of Tc = 55 °C, I

F = 1600 mA, the relative luminous flux ratio is

120% in the chart below. A CXA2 Studio LED that measures 10,000 lm during binning will deliver 12,000 lm (10,000 * 1.2) at steady-state

operation of Tc = 55 °C, I

F = 1600 mA.

30%

60%

90%

120%

150%

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

Current (mA)

Tc = 25 °C

Tc = 55 °C

Tc = 85 °C

Tc = 105 °C

72 V

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