Product Nomenclature
The part number designation is explained as follows:
LXCL ABCD
Where:
A — designates radiation pattern (value P for Lambertian)
B — designates color (see Lumileds AB21)
C — is a running number reserved for future products
D — is a running number reserved for future products
Average Lumen Maintenance Characteristics
Lifetime for solidstate lighting devices (LEDs) is typically defined in terms of lumen maintenance—the percentage of initial light
output remaining after a specified period of time.
Lumileds' testing has verified that LUXEON Portable PWT products will deliver, on average, 70% lumen maintenance at 2000
hours of operation at a forward current of 350 mA. This testing is based on constant current operation with junction temperature
maintained at or below 55°C.
This performance is based on internal LUXEON reliability testing. Observation of design limits included in this data sheet is
required in order to achieve this projected lumen maintenance.
Environmental Compliance
Lumileds is committed to providing environmentally friendly products to the solidstate lighting market. The LUXEON Portable
PWT is compliant to the European Union directives on the restriction of hazardous substances in electronic equipment, namely
the RoHS directive. Lumileds will not intentionally add the following restricted materials to the LUXEON Portable PWT: lead,
mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB) or polybrominated diphenyl ethers (PBDE).
LUXEON Portable PWT Typical Design Parameters
Table 1.
Name
Voltage
V
Current
A
0.35
Beam
Angle
Assembly
Method
Luminous
Intensity
(cd)
Emitter Life
(100% functional,
> 70% lm maint.)
h
2000
Part
Number
LUXEON
Portable
PWT
3.4
120º
Surface
Mount
Device
(SMD)
9
LXCL PWT1
LUXEON Portable PWT Technical Datasheet DS52 (5/06)
3
Copyright 2006 Lumileds Lighting.
LUMILEDS [ LUMILEDS LIGHTING COMPANY ]
