Polar Diagram Comparison
AVERAGE BEAM ANGLE (50%): 130.7DEG
UNIT: cd
C0/180, 156.9 deg
C30/210, 139.3 deg
C60/240, 116.9 deg
C90/270, 109.9 deg
300
600
900
1200
1500
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
Temperature (
o
C)
The driver lifespan is based on capacitor working temperature.
IC
Capacitor
MOS
PCB
LED
Fitting
Environmental temperature
90
80
70
60
50
40
30
20
10
0
11:13:13
11:31:10
11:49:10
12:07:10
12:25:10
12:43:10
13:01:10
13:19:10
13:37:10
13:55:10
14:13:10
14:31:10
14:49:10
15:07:10
15:43:10
16:01:10
16:19:10
16:37:10
Time
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
LED Light Decay Rate
% 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)
Temperature
●
The testing is operated at 25°C
●
The lifetime of capacitor, minimum of 5,000 hours if operated at 105°C, will be doubled whenever the temperature drops 10°C
●
The highest withstand temperature of IC, MOS could be 120°C
●
The highest withstand temperature of LED junction temperature is 150°C
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