NT-42D0-0426 LIGHTING SCIENCE GROUP CORPORATION, NT-42D0-0426 Datasheet - Page 20

• Manufacturer Part Number: NT-42D0-0426
• Description: LED ARRAY WHITE 4700K 700MA
• Manufacturer: LIGHTING SCIENCE GROUP CORPORATION
• Series: Atlas™r
• Type: Without Connectorr

Specifications of NT-42D0-0426

• Color: White
• Luminous Flux @ Current - Test: 309 lm
• Current - Test: 700mA
• Current - Max: 1.05A
• Driver Circuitry: No
• Voltage: 7.6V
• Wavelength: 5075K
• Configuration: Single
• With Connector: No
• Voltage - Input: 7.6V
• Power - Input: 5.3W
• Illumination Color: Daylight White
• Wavelength/color Temperature: 3950 K to 6200 K
• Luminous Flux: 244 lm
• Viewing Angle: 110 deg
• Power Rating: 5.3 W
• Operating Voltage: 7.6 V
• Operating Current: 700 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 521-1039-2

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Lifetime for solid-state devices (LEDs) is typically defined in terms of lumen maintenance - the percentage of
initial light output remaining after a specified period of time.
The Warm White (NT-42D1-0425) and Daylight White (NT-42D0-0426) will deliver 70% lumen maintenance at
50,000 hours of operation at a forward current of 700mA. This projection is based on constant current operation
with junction temperature maintained at or below 120ºC. The RGB (NT-43F0-0424) will deliver, 70% lumen
maintenance at 50,000 hours of operation at a forward current of 350mA. This projection is based on constant
current operation with junction temperature maintained at or below 120ºC.
This performance is based on independent test data. Lamina’s historical data from tests run on similar material
systems, and internal reliability testing. Observation of design limits included in this data sheet is required in
order to achieve this project lumen maintenance.
L
Led L
ighting
roJeCteD
Warm White (NT-42D1-0425), Daylight White (NT-42D0-0426), and RGB (NT-43F0-0424)
ight
i
ncorporated
e
ngines
Fm-0167 r
120.00%
100.00%
80.00%
60.00%
40.00%
20.00%
0.00%
l
uMen
10
ev
Amber (NT-41E0-0483), and Red (NT-41A0-0482)
05.21.08
Blue (NT-42B1-0484), Green (NT-42C1-0485),
Available 2nd Quarter 2008
M
Typical NT-42D1-0425 Lumen Maintenance Data, 50' C Heat Sink
AintenAnCe
100
Hours
1000
10000
100000
Figure 7a.
Figure 7b.
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