CMT1925 datasheet(11/21 Pages) CREE

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XLamp® CmT1925 LED

rELaTivE LuMinous fLuX

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

• Measurements of CMT1925 at steady-state operation at the given conditions, divided by

• Flux measured during binning, which is a pulsed measurement at 700 mA at T

J = 85 °C.

For example, at steady‑state operation of Tc = 25 °C, I

F = 900 mA, the relative luminous flux ratio is 140% in the chart below. A CMT1925

LED that measures 3380 lm during binning will deliver 4732 lm (3380 * 1.4) at steady‑state operation of Tc = 25 °C, I

F = 900 mA.

TyPiCaL sPaTiaL DisTribuTion

20%

40%

60%

80%

100%

120%

140%

160%

180%

200%

220%

240%

400

500

600

700

800

900 1000 1100 1200 1300 1400 1500 1600 1700

Current (mA)

Tc = 25 °C

Tc = 55 °C

Tc = 85 °C

Tc = 105 °C

Far Field

20%

40%

60%

80%

100%

-90

-70

-50

-30

-10

Angle (º)

CMT1925 Datasheet(PDF) 11 Page - Cree, Inc

CMT1925 Datasheet(HTML) 11 Page - Cree, Inc

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