PRODUCT
SPECIFICATION
DATE: 03/08/2005
REV.
1
SHEET 1 OF 6
NO. 61L70006
cosmo
ELECTRONICS CORPORATION
H.P LED :
KLH00GXX4
1. Features
Cosmo’
high power LED packages
can handle up to 350-500mA DC current, and
s
available in 525nm wavelength in mono or multiple colors. These packages are
formed by bonding 4 pcs of 40 mil LED chips on a 20mmx20mm metal PCB. A
heat sink is mechanically screwed to the board to cool down metal surface
temperature below 70
o
C
. The main features of these packages are as follows：
l
Very high flux output per LED.
l
Flat PCB package. On each PCB, the quantity of LED being adjustable from 1
to 4 to meet user’ need. These LEDs being connected in series.
s
l
Very long operation life time up to 100k hours attainable, by using a proper heat
sink.
l
130±10
o
cool beam in most packages.
2. Applications
l
l
l
l
l
l
l
l
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Outdoor and indoor architectural lighting
Reading light (car/bus/aircraft)
Decorative/entertainment lighting
Bollards/Security/Garden lighting
Traffic signal
Portable lighting (flashlight/bicycle)
Edge-lit signs (exit sign/point of sales)
LCD backlights
Light guide
3. Operation and Storage Temperature
Parameter
Operation
temperature
Storage temperature
Symbol
Topr
Tstg
Value
(Data to be ready, -30~+85)
(Data to be ready, -40~+110)
Unit
o
C
C
o
PRODUCT
SPECIFICATION
DATE: 03/08/2005
NO. 61L70006
SHEET 3 OF 6
REV.
1
cosmo
ELECTRONICS CORPORATION
H.P LED :
KLH00GXX4
6. Wavelength Characteristics
l
Relative spectral power intensity vs. wavelength (Ta=25
o
C
)
Relative spectral power intensity vs. Wavelength
Relative spectral power intensity
1.2
1
0.8
0.6
0.4
0.2
0
350
450
550
650
750
G
(518.5 nm)
Wavelength [
λ
p, nm]
7. Light Output Characteristics
l
Relative light output vs. junction temperature
Ambient Temperature vs. Relative Luminous Flux
10.00
Relative Luminous Flux [a.u]
1.00
0.10
-40
-20
0
20
40
o
60
80
100
Ambient Temperature Ta ( C)
PRODUCT
SPECIFICATION
DATE: 03/08/2005
NO. 61L70006 REV.
1
SHEET 4 OF 6
cosmo
ELECTRONICS CORPORATION
H.P LED :
KLH00GXX4
8. Forward Current Characteristics
l
Forward current vs. relative luminous flux (Ta=25
o
C
)
Forward Current vs. Relative Luminous Flux
3.0
Relative Luminous Flux [a.u.]
2.5
2.0
1.5
1.0
0.5
0.0
0
200
400
600
800
1000
Forward Current I
F
(mA)
l
Forward voltage vs. forward current (4 LEDs/PCB, Ta=25
o
C
)
Forward Voltage vs. Forward Current [4 chip]
10000
Forward Current I
F
(mA)
1000
100
10
1
11
8
12
9
13
10
14
11
15
12
16
13
17
14
18
15
19
16
Forward Voltage V
F
(V)
PRODUCT
SPECIFICATION
DATE: 03/08/2005
NO. 61L70006
SHEET 5 OF 6
REV.
1
cosmo
ELECTRONICS CORPORATION
16
15.8
15.6
15.4
15.2
15
14.8
14.6
14.4
14.2
14
13.8
13.6
13.4
13.2
13
H.P LED :
KLH00GXX4
l
Forward voltage vs. ambient temperature (4 LED/PCB, I
F
=350mA)
Ambient Temperature vs. Forward Voltage
Forward Voltage VF (V)
-40
-20
0
20
40
60
80
100
Ambient Temperature Ta[
o
C]
9. Spatial Radiation Pattern
l
4 Chips/PCB
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