XLAMP® CMB1507 LED

© 2022 Cree LED. The information in this document is subject to change without notice. Cree®, XLamp®, EasyWhite®, and the Cree logo are registered

trademarks, and the Cree LED logo is a trademark, of Cree LED.

CLD-DS281

REV 0

13

RELATIVE LUMINOUS FLUX

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

• Measurements of CMB1507 at steady‑state operation at the given conditions, divided by

• Flux measured during binning, which is a pulsed measurement at 400 mA at T

J = 85 °C.

Using the 18‑V CMB1507 as an example, at steady‑state operation of Tc = 25 °C, I

F = 1000 mA, the relative luminous flux ratio is 240%

in the chart below. A CMB1507 LED that measures 1040 lm during binning will deliver 2496 lm (1040 * 2.4) at steady‑state operation of

Tc = 25 °C, I

F = 1000 mA.

0%

20%

40%

60%

80%

100%

120%

140%

160%

180%

200%

220%

240%

260%

280%

200

300

400

500

600

700

800

900

1000

1100

1200

Current (mA)

Tc = 25 °C

Tc = 55 °C

Tc = 85 °C

Tc = 105 °C

18 V