1
LED Luminaire Lumen Maintenance – LM-80 Data
APPLICABLE MODEL: MILLENIUM SEMI-RECESSED EDGE™ MR13FFR SERIES WITH 20 WATT 4000K LED (20L40K)
The purpose of this document is to demonstrate that Kenall’s Millenium Edge MR13FFR follows current
industry standard procedures in reporting the expected lumen maintenance of the LEDs within the product
under normal operating conditions.
Lumen maintenance of the Philips-Lumileds LEDs used within this product is estimated by the following sets
of data:
In-Situ Product Testing of a representative product’s temperature characteristics (specifically the
measurement related to
LED junction temperature). For this product series, this product was evaluated by a UL Accredited DAP
laboratory to comply with UL8750 and UL1598 standards under an ambient temperature of 25°C (77°F). The
critical measurement concerning lifetime is
the LED temperature measurement point (TMPLED), which has been measured per Lumileds Application Brief
AB33.
LM-80 Test Results for the LED Package: Lumen maintenance evaluation of the LED source by its
manufacturer under compliance with IES LM-80-08 guidelines. The purpose of LM-80-08 is to determine
the lumen maintenance of an LED package, array or module after 6,000 hours of operation under specific
ambient temperature and electrical operating conditions.
The LEDs used within the luminaire are expected to maintain the lumen maintenance shown in the LM-80
testing if the LED temperature measurement point (TMPLED) is less than or equal to the temperature(s) specified
in the LM-80 test report for the corresponding drive current and the drive current in the luminaire is less than
or equal to the drive current specified in the LM-80 test report at the corresponding temperature or higher.
A summary of the lumen maintenance information is shown below:
LED Drive Current
700mA
In-Situ LED Temperature Measurement Point (TMPLED)184.1°C
Lumileds LM-80 Test Temperature285.0°C
Lumen Maintenance @ 6,000 hours/10,000 hours2
94.9% / 93.7%
Luminaire L70 Design Lifetime
50,000 hours
1
UL DAP Accredited laboratory test results of temperature corrected to 25°C ambient
2
Test result values from Lumileds LM-80 test results (Design Resource DR03 – 05/28/2010)
Please refer to attached excerpts from Design Resource DR03: LM-80 Test Report
Excerpt from Design Resource DR03: LM-80 Test Report
4. Operating cycle
4. Operating
cycle
LUXEON
Rebel LEDs
are driven with a constant direct current (DC).
LUXEON Rebel LEDs are driven with a constant direct current (DC).
5. Ambient conditions including airflow, temperature, and relative humidity
5. Ambient
conditions
including
airflow,
temperature,
relative
humidity
The
thermal chamber
has minimal
airflow. The
case temperature
withinand
the thermal
chamber
was characterized by mounting several thermocouples
Thea thermal
chamber stress
has minimal
The case temperature
within thepoint,
thermal
chamber
was characterized
by mounting
several
thermocouples
on
sample reliability
board airflow.
at the designated
thermal measurement
as shown
in Application
Brief, LUXEON
Rebel
Thermal
on
a
sample
reliability
stress
board
at
the
designated
thermal
measurement
point,
as
shown
in
Application
Brief,
LUXEON
Rebel
Thermal
Measurement Guidelines (AB33). In addition, several thermocouples were mounted in the air at a distance of 1.5 mm above the reliability stress
Measurement
Guidelines
In addition,
several thermocouples
were mounted
in the
a distance
of 1.5
mm above
the
reliability stress
board.
Then the
reliability(AB33).
stress board
was mounted
in the thermal chamber
and driven
at air
theatspecified
stress
condition.
The
thermocouple
board.
Then
the
reliability
stress
board
was
mounted
in
the
thermal
chamber
and
driven
at
the
specified
stress
condition.
The
thermocouple
readings were monitored. After the thermocouples reached thermal equilibrium, the thermocouple readings were data-logged and averaged
readings were
monitored.
Afterwithin
the thermocouples
reached
thermal equilibrium, the thermocouple readings were data-logged and averaged
together.
The relative
humidity
the oven was also
characterized.
together. The relative humidity within the oven was also characterized.
6. Case and ambient temperatures (ambient temperature measured 1.5mm above reliability stress board)
6. Case
ambient temperatures
(ambient
temperature
above
reliability
The
thermaland
characterization
results are summarized
in the table
below. In allmeasured
cases, both TS1.5mm
and TA meet
or exceed
the IES stress
LM-80-08board)
limits
TheTthermal
characterization
results
summarized in the table below. In all cases, both TS and TA meet or exceed the IES LM-80-08 limits
(i.e.
] 55°C
or 85°C, and that
TA]are
TS –5°C).
S
(i.e. TS ] 55°C or 85°C, and that TA] TS –5°C).
Required
Required
LM-80
Test
LM-80 Test
Temperature
Temperature
IF
IF
Actual
Actual
TS
TS
Actual
Actual
TA
TA
55°C
55°C
85°C
350 mA
350 mA
60°C
60°C
85°C
64°C
64°C
84°C
85°C *
108°C
108°C *
350 mA
350 mA
85°C
128°C
128°C
84°C
103°C
103°C
LM-80 Tests
LM-80
Tests
Actual
Actual
D[T
– TS]
A
D[TA– TS]
+4°C
+4°C
-1°C
-1°C
–25°C
–25°C
Actual
Actual
Relative
Relative
Humidity
Humidity
18%
18%
7%
7%
TBD
TBD
Average
Average
lumen
output
atlumen
6,000output
hours
at 6,000 hours
0.992
0.992
0.962
0.962
0.979
0.979
Average
Average
lumen
output
atlumen
10,000output
hours
at 10,000 hours
0.983
0.983
0.955
0.955
0.956
0.956
* Third temperature chosen by the manufacturer, and adjusted to meet –5°C TA – TS requirement.
* Third temperature chosen by the manufacturer, and adjusted to meet –5°C TA – TS requirement.
Additional
Additional
Test
Test
Temperature
Temperature
55°C
Additional Tests Provided
www.
kenall.com Actual
P:Additional
800-4-Kenall
847-360-1781
Tests F:
Provided
Actual
Actual
Actual
IF
IF
Actual
TS
TS
Actual
TA
TA
Actual
D[T
– TS]
A
D[TA– TS]
700 mA
69°C
73°C
+4°C
Actual
Relative
Relative
Humidity
Humidity
18%
1020 Lakeside
Drive Gurnee, Illinois
60031
Average
Average
Average
lumen
output
atlumen
6,000output
hours
at 6,000 hours
0.978
LM80TECHDATA-020912
Average
lumen
output
atlumen
10,000output
hours
at 10,000 hours
0.967
108°C *
350 mA
128°C
103°C
–25°C
TBD
0.979
0.956
* Third temperature chosen by the manufacturer, and adjusted to meet –5°C TA – TS requirement.
2
Additional Tests Provided
Additional
Test
Temperature
IF
Actual
TS
Actual
TA
Actual
D[TA– TS]
Actual
Relative
Humidity
Average
lumen output
at 6,000 hours
Average
lumen output
at 10,000 hours
55°C
85°C
700 mA
700 mA
69°C
92°C
73°C
87°C
+4°C
–5°C
18%
7%
0.978
0.949
0.967
0.937
55°C
1000 mA
71°C
80°C
+9°C
18%
0.955
0.945
7. Drive current of the LED light source during lifetime test
Specified in the tables.
8. Initial Luminous flux and forward voltage at photometric measurement current
See tables.
9. Lumen maintenance for data for each individual light source along with median value, standard deviation,
minimum and maximum lumen maintenance value for all of the light sources
See tables.
Design Resource DR03 (10/05/28)
Lumen Maintenance Projection for
White LXM3-PWx1 LUXEON Rebel under these conditions
2
85°C, 0.7A ((Tjunction
j
112°C)) Normalized to 1 at 24 hours
1.2
*Philips Lumileds recommends
p
extrapolations
of 6x the test time
Normaliz
zed Light Ou
utput
1.1
1.0
Extrapolated data = –6.5% at 10,000 hours
0.9
35,000 hour
25,000 hour
0.8
ENERGY STAR 25,000 and 35,000
limits after 6,000
6 000 hours of stress
6x test time*
0.7
L70 = 65,000 hours
Ta within –5°C of Ts, in accordance with LM80.
0.6
0
6
1,000
10,000
100,000
1,000,000
Hours
©2010 Philips Lumileds Lighting Company. All rights reserved.
www. kenall.com
P: 800-4-Kenall
F: 847-360-1781
1020 Lakeside Drive Gurnee, Illinois 60031