Temperature
●
The testing is operated at 35°C environment temperature.
●
The minimum lifetime for capacitor is 5000hours at 105°C, the lifetime will be double when the temperature drop each 10°C
●
Under 75°C working TEMP, max 40000hrs life time is achievable.
●
The highest withstand temperature of IC is 120°C
●
The highest withstand temperature of MOS is 120°C
●
The highest withstand LED junction temperature is 150°C
90
80
70
60
50
40
30
20
10
0
11
:
13
:
13
11:25:10
11:37:10
11:49:10
12:01:10
12:13:10
12:25:10
12:37:10
12:49:10
13:01:10
13:13:10
13:25:10
13:37:10
13:49:10
14:01:10
14:13:10
14:25:10
14:37:10
14:49:10
15:01:10
15:13:10
15:25:10
15:37:10
15:49:10
16:01:10
16:13:10
16:25:10
16:37:10
IC
Capacitor
MOS
PCB
LED
Fitting
Environmental temperature
Temperature (
o
C)
Time
The driver lifespan is based on capacitor working temperature.
Driver lifetime & LED light decay rate
90000
80000
70000
60000
50000
40000
30000
20000
10000
0
65
o
C
75
o
C
85
o
C
95
o
C
105
o
C
Lifetime (hours)
Capacitor Tc (
o
C)
Driver Lifetime
% Luminous Flux
FLUX
△
U'V'
110%
105%
100%
95%
90%
85%
80%
75%
70%
0.0040
0.0035
0.0030
0.0025
0.0020
0.0015
0.0010
0.0005
0.0000
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
LifeTime (hours)
Polar Diagram Comparison
AVERAGE BEAM ANGLE (50%): 57.6DEG
UNIT: cd
C0/180, 56.7 deg
C30/210, 57.9 deg
C60/240, 58.1 deg
C90/270, 57.7 deg
www.upshineled.com [email protected]
80
160
240
320
400
0
O
180
O
150
O
-150
O
120
O
-120
O
90
O
-90
O
60
O
-60
O
30
O
-30
O
0
LED Light Decay Rate
