CREE CR24 40L 44W 35K

Report Number: ISO-NRCan 060

Issued: Nov/29/2012

Item tested CREE CR24 40L 44W 35K
Rated electrical values 60Hz AC, 120V
Nominal CCT 3500K
Item received date 21-Nov-2012
Test completed date 21-Nov-2012
Objecvie of test IES LM-79 was performed to measure the total luminous flux, Correlated colour temperature (CCT), colour rendering index (CRI), chromaticity coordinates (x,y), and spectral power distribution (SPD), and luminous efficacy (lm/W) .
Procedure With reference to Lumentra standard operation procedures Lumentra-SOP01.
Test report prepared by Rui Li, PhDEngineering Consultant, Lumentra Inc.Krishnan Harikumar, PhDSenior Researcher, Lumentra Inc.
Test report approved by Venkat Venkataramanan, PhDCTO, Lumentra Inc.


Test Conditions

Number of hours operated prior to measuremet 0
Total operating time of the product including stabilization 90 minutes
Stabilization time 90 minutes
Ambient temperature (°C) 25
Orientation of the product during testing Horizontal
Photometric method used Sphere-spectroradiometer
Designation and type of reference standard used 75W Halogen lamp, SCL-1400-F106, omni-directional, NVLAP calibration traceable to NIST
Correction factors applied Self-absorption
Photometric measurement conditions 76 inch integrating sphere, 4p geometry
Spectroradiometer resolution 1.5 nm
Equipment used SLM-76-C SphereOptics integrating sphere system, Yokogawa WT230 Digital power meter
Deviation from standard operating procedures N/A


Test Results

Total luminous flux (Lumens) 3554
CIE Chromaticity coordinate x 0.4098
CIE Chromaticity coordinate y 0.3946
CIE Chromaticity coordinate u’ 0.2370
CIE Chromaticity coordinate v’ 0.5135
Duv 0.000739
Correlated colour temperature CCT (K) 3433
Colour rendering index (CRI) 92.80
Voltage RMS (V) 120.0
Current RMS (A) 0.368
Real Power (W) 43.9
Power Factor 0.994
Total Harmonic Distortion (%) 6.5
Efficacy (lm/W) 81.0


Manufacturer Claims

Total luminous flux (Lumens) 4000
Correlated colour temperature CCT (K) 3500
Colour rendering index (CRI) 92
Voltage RMS (V) 120
Power (W) 44
Efficacy (lm/W) 92
Life (hour) 50,000
Equivalency N/A


Figure 1. Spectral Power Distribution

Figure 2. CIE Chromaticity Diagram


This report is based on published industry procedures and the results relate only to the item tested. This report shall not be reproduced except in full, without written approval of Lumentra Inc.