Datasheet

DATASHEET
JU1215
9V/4W 3S8P/EU Series
26
Copyright © 2012, Everlight All Rights Reserved. Release Date: 2016.08.26 Issue No: DHE-0003137 Rev: 1
www.everlight.com
Lumen Maintenance Life Projection
Table 1: Report at each LM-80 Test Condition
Description of LED Light Source
Tested (manufacturer, model,
catalog number)
Test Condition 1 - 55⁰C Case
Temp
Test Condition 2 - 85⁰C Case
Temp
Test Condition 3 - 105⁰C Case
Temp
Sample size 25 Sample size 25 Sample size 25
Number of failures 0 Number of failures 0 Number of failures 0
DUT drive current
used in the test (mA)
400
DUT drive current
used in the test (mA)
400
DUT drive current
used in the test (mA)
400
Test duration (hours)
6,000
Test duration (hours)
6,000
Test duration (hours)
6,000
Test duration used for
projection (hour to
hour)
1,000 -
6,000
Test duration used for
projection (hour to
hour)
1,000 -
6,000
Test duration used for
projection (hour to
hour)
1,000 -
6,000
Tested case
temperature (⁰C)
55
Tested case
temperature (⁰C)
85
Tested case
temperature (⁰C)
105
α 6.248E-06 α 6.654E-06 α 1.000E-05
B 1.013 B 1.014 B 1.015
Calculated L70(6k)
(hours) 59,000
Calculated L70(6k)
(hours) 56,000
Calculated L70(6k)
(hours) 37,000
Reported L70(6k)
(hours)
>36000
Reported L70(6k)
(hours)
>36000
Reported L70(6k)
(hours)
>36000