TERRALUX DLR7H Spec Sheet - Manual (Page 3)

3
TerraLUX DLR7H Product Specification – Subject to change without notice
WWW.TERRALUX.COM
7/03/2014
LEDSense ® Operation, Thermal De-rating and Lumen Maintenance
TerraLUX LED engines employ TerraLUX’s patented LEDSense ® Thermal Management Technology to
automatically provide maximum light output in various fixtures and operating conditions while
assuring long-term lumen maintenance. LEDSense
® regularly measures the operating temperature
and ensures compliance with a pre-programmed temperature and drive-current profile. This profile
is based on the LED manufacturer’s LM-80 data report and minimum L70/60,000 hour lumen
maintenance curves (extrapolated per IES TM-21-11). LEDSense
® is always active, and will
compensate for variation in thermal conditions due to heatsinking, ambient air, engine positioning,
or any other variable that affects the operating temperature. The Thermal De-rating curve below
identifies the relative light output that can be expected under various thermal conditions. The
LEDSense
® Power Curve identifies the reduction in input power over temperature.
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
25
35
45
55
65
75
85
95
105
Re
la
5v
e
Li
gh
t
o
ut
pu
t
Heat
Sink
T
C
Temperature
[°C]
Rela5ve
Light
Output
Over
Temp
(@120V)
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
25
35
45
55
65
75
85
95
105
Re
la
5v
e
Po
w
er
Heat
Sink
T
C
Temperature
[°C]
Rela5ve
Power
over
Temp.
4
inch/120V