MR16 Reference Design

Cree® XLamp® XB-D LED
MR16 Reference Design
Table of Contents
Introduction
Introduction..................................................................................... 1
The compact MR16 form factor, with limited space for drive
Design approach/objectives.......................................................... 2
The 6-step methodology................................................................. 2
1. Define lighting requirements................................................. 2
2. Define design goals............................................................... 4
3. Estimate efficiencies of the optical, thermal & electrical
electronics and thermal dissipation, presents a difficult design
challenge. The small footprint and industry-leading light output
of the XB-D LED make it particularly well-suited for use as the
light source in an MR16 lamp.
systems.................................................................................. 4
Building on Cree’s reference designs of MR16 replacement
4. Calculate the number of LEDs.............................................. 7
lamps using XLamp® MT-G, XM-L EasyWhite® and XP-E LEDs,
5. Consider all design possibilities........................................... 7
this design demonstrates the possibility of employing the
6. Complete the final steps: implementation and analysis..... 7
XLamp XB-D LED as the light source of a 20-watt equivalent
Conclusion..................................................................................... 10
CLD-AP95 rev 0C
Application Note
MR16 replacement lamp for use as an indoor spotlight.1
www.cree.com/Xlamp
Bill of materials............................................................................. 10
1
Cree XLamp MT-G MR16 Reference Design
Cree XLamp XM-L EZW MR16 Reference Design
Cree XLamp XP-E MR16 Reference Design
Reliance on any of the information provided in this Application Note is at the user’s sole risk. Cree and its affiliates make no warranties or representations about, nor assume
any liability with respect to, the information in this document or any LED-based lamp or luminaire made in accordance with this reference design, including without limitation
that the lamps or luminaires will not infringe the intellectual property rights of Cree or a third party. Luminaire manufacturers who base product designs in whole or part on
any Cree Application Note or Reference Design are solely responsible for the compliance of their products with all applicable laws and industry requirements.
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and
EasyWhite® are registered trademarks and the Cree logo is a trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental
Protection Agency. Other trademarks, product, and company names are the property of their respective owners and do not imply specific product and/
or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty
information, please contact Cree Sales at [email protected].
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
USA Tel: +1.919.313.5300
1
XLamp ® XB-D LED MR16 Reference Design
Design approach/objectives
In the “LED Luminaire Design Guide” Cree advocates a six step framework for creating LED luminaires and lamps. All Cree reference
designs use this framework, and the design guide’s summary table is reproduced below.
Table 1: Cree 6-step framework
Step
Explanation
1. Define lighting requirements
•
The design goals can be based either on an existing fixture or on the application’s lighting requirements.
2. Define design goals
•
•
Specify design goals, which will be based on the application’s lighting requirements.
Specify any other goals that will influence the design, such as special optical or environmental requirements.
3. Estimate efficiencies of the optical, thermal &
electrical systems
•
•
•
Design goals will place constraints on the optical, thermal and electrical systems.
Good estimations of efficiencies of each system can be made based on these constraints.
The combination of lighting goals and system efficiencies will drive the number of LEDs needed in the
luminaire.
4. Calculate the number of LEDs needed
•
Based on the design goals and estimated losses, the designer can calculate the number of LEDs to meet the
design goals.
5. Consider all design possibilities and choose
the best
•
•
With any design, there are many ways to achieve the goals.
LED lighting is a new field; assumptions that work for conventional lighting sources may not apply.
6. Complete final steps
•
•
•
•
•
Complete circuit board layout.
Test design choices by building a prototype luminaire.
Make sure the design achieves all the design goals.
Use the prototype to further refine the luminaire design.
Record observations and ideas for improvement.
The 6-step methodology
The goal of this design is an LED-based 20-watt equivalent retrofit MR16 lamp that shows the performance available from the XLamp
XB-D LED.
1. Define lighting requirements
Table 2 shows a ranked list of desirable characteristics to address in an MR16 lamp reference design.
Table 2: Ranked design criteria for an MR16 lamp
Importance
Critical
Characteristics
Units
Light intensity - center beam candle power (CBCP)
candelas (cd)
Beam angle - full width half maximum (FWHM)
degrees (°)
Illuminance distribution
footcandles (fc)/lux (lx)
Power
watts (W)
Luminous flux
lumens (lm)
Efficacy
lumens per watt (lm/W)
Form factor
Important
Price
$
Lifetime
hours
Operating temperature
°C
Correlated color temperature (CCT)
K
Color rendering index (CRI)
100-point scale
Manufacturability
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
2
XLamp ® XB-D LED MR16 Reference Design
Table 3 summarizes the ENERGY STAR® requirements for all integral LED lamps.2
Table 3: ENERGY STAR requirements for all lamps
Characteristic
Requirements
Lamp must have one of the following designated CCTs (per ANSI C78.377-2008) consistent with the 7-step chromaticity
quadrangles and Duv tolerances below.
CCT and Duv
Color maintenance
Nominal CCT
Target CCT (K) and Tolerance
2700 K
3000 K
3500 K
4000 K
2725 ± 145
3045 ± 175
3465 ± 245
3985 ± 275
Target Duv and Tolerance
0.000 ±
0.000 ±
0.000 ±
0.001 ±
0.006
0.006
0.006
0.006
The change of chromaticity over the minimum lumen maintenance test period (6,000 hours) shall be within 0.007 on the CIE 1976
(u’, v’) diagram.
CRI
Minimum CRI (Ra) of 80. R9 value must be greater than 0.
Allowable lamp bases
Must be a lamp base listed by ANSI.
Power factor
Lamp power < 5 W and low voltage lamps: no minimum power factor is required
Lamp power > 5 W: power factor must be > 0.70
Note: Power factor must be measured at rated voltage.
Minimum operating temperature
-20 °C or below
LED operating frequency
≥ 120 Hz
Note: This performance characteristic addresses problems with visible flicker due to low frequency operation and applies to steadystate as well as dimmed operation. Dimming operation shall meet the requirement at all light output levels.
Electromagnetic and radio frequency
interference
Must meet appropriate FCC requirements for consumer use (FCC 47 CFR Part 15)
Audible noise
Class A sound rating
Transient protection
Power supply shall comply with IEEE C62.41-1991, Class A operation. The line transient shall consist of seven strikes of a 100 kHz
ring wave, 2.5 kV level, for both common mode and differential mode.
Operating voltage
Lamp shall operate at rated nominal voltage of 120, 240 or 277 VAC, or at 12 or 24 VAC or VDC.
Table 4 summarizes the ENERGY STAR requirements for replacement MR16 lamps.3
Table 4: ENERGY STAR requirements for MR16 lamps
Criteria Item
Requirements
Definition
Directional lamp means a lamp having at least 80% light output within a solid angle of ∏ sr (corresponding to a cone with angle of
120°)
Minimum luminous efficacy
Lamp diameter < 20/8 inch: 40 lm/W
Lamp diameter > 20/8 inch: 45 lm/W
Color spatial uniformity
The variation of chromaticity within the beam angle shall be within 0.006 from the weighted average point on the CIE 1976 (u’, v’)
diagram.
Maximum lamp diameter
Not to exceed target lamp diameter
Maximum overall length (MOL)
Not to exceed MOL for target lamp
Minimum center beam intensity
PAR and MR16 lamps
MR16 lamps
Link to online tool at
www.energystar.gov/ia/products/lighting/iledl/IntLampCenterBeamTool.zip
Lumen maintenance
> 70% lumen maintenance (L70) at 25,000 hours of operation
Rapid-cycle stress test
Cycle times must be 2 minutes on, 2 minutes off. Lamp will be cycled once for every 2 hours of L70 life.
As shown in Figure 1, we used the ENERGY STAR Center Beam Intensity Benchmark Tool to determine that a 20-W equivalent MR16 lamp
with a 25° beam angle needs to provide CBCP of 876 cd.
2
3
ENERGY STAR Program Requirements for Integral LED Lamps Eligibility Criteria – Version 1.4, Table 4
Ibid., Table 7C
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
3
XLamp ® XB-D LED MR16 Reference Design
ENERGY STAR® Integral LED Lamp Center Beam Intensity Benchmark Tool
MR-16 Lamps
Target Halogen Lamp Parameters
Enter Nominal Lamp Wattage:
Enter Nominal Beam Angle*:
Minimum Center Beam Intensity:
watts
degrees
20
25
876 cd
Coefficient
Watts
Beam
Angle
Intercept
8.2926932
20
25
Watts
0.0685006
Beam Angle
-0.109284
Term
Watts2
-0.000514
Beam Angle2
0.0008734
Root Mean Square Error
0.247998
Log CBCP
Predicted Log Two-sigma
CBCP
Lower
Bound
7.271
Predicted
CBCP
6.775
1438
CBCP
Two-sigma
Lower
Bound
876
*Nominal beam angle per ANSI C78.379-2006: American National Standard for electric lamps-- Classification of the Beam Patterns of Reflector Lamps.
See Section 4.1 Nominal beam angle classifications, and section 4.3 Beam angle tolerance of PAR and R lamps.
Figure 1: ENERGY STAR Center Beam Intensity Benchmark Tool output for 20-W equivalent MR16 lamp with 25° beam angle
2. Define design goals
The aim of this project is a 20-W equivalent MR16 indoor spotlight with a 25° beam angle using the XLamp XB-D LED. Table 5 shows the
design goals for this project.
Table 5: Design goals
Characteristic
Unit
Minimum Goal
CBCP - 25° beam angle
cd
876
880
Light output
lm
280
> 280
Power
Target Goal
W
5
<5
Efficacy
lm/W
70
75
Lifetime
hours
50,000
50,000
CCT
K
3,000
3,000
CRI
100-point scale
> 80
3. Estimate efficiencies of the optical, thermal & electrical systems
We used Cree’s Product Characterization Tool (PCT) tool to determine the drive current for the design. For the 280-lumen target, we
estimated 90% optical efficiency and 85% driver efficiency. We also estimated a solder point temperature of 65 °C.
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
4
XLamp ® XB-D LED MR16 Reference Design
LED System Comparison Report
1
System:
280
Target Lumens :
90%
Optical Efficiency:
Current (A)
LED 1
Model
Flux
LED 2
Model
Cree XLamp XB-D {AWT}
Q3 [93.9]
$
Price
SYS # LED SYS lm tot
Tsp (ºC)
65
(none)
Flux
Price
Tj (ºC)
$
25
-
SYS W
SYS lm/W
0.100
10
292.6
3.24
90.4
#N/A
#N/A
#N/A
#N/A
0.150
7
294.2
3.45
85.2
#N/A
#N/A
#N/A
#N/A
0.200
6
325
4
81.3
#N/A
#N/A
#N/A
#N/A
0.250
5
328.5
4.22
77.9
#N/A
#N/A
#N/A
#N/A
0.300
4
306.7
4.1
74.9
#N/A
#N/A
#N/A
#N/A
0.350
4
348.5
4.83
72.1
#N/A
#N/A
#N/A
#N/A
0.400
3
291.1
4.18
69.6
#N/A
#N/A
#N/A
#N/A
0.450
3
319.5
4.75
67.3
#N/A
#N/A
#N/A
#N/A
0.500
3
346.5
5.32
65.1
#N/A
#N/A
#N/A
#N/A
0.550
3
372.2
5.9
63.1
#N/A
#N/A
#N/A
#N/A
0.600
3
396.8
6.48
61.2
#N/A
#N/A
#N/A
#N/A
0.650
2
280.2
4.71
59.5
#N/A
#N/A
#N/A
#N/A
0.700
2
295.2
5.11
57.8
#N/A
#N/A
#N/A
#N/A
0.750
2
309.6
5.51
56.2
#N/A
#N/A
#N/A
#N/A
0.800
2
323.4
5.91
54.7
#N/A
#N/A
#N/A
#N/A
0.850
2
336.8
6.32
53.3
#N/A
#N/A
#N/A
#N/A
0.900
2
349.6
6.73
52
#N/A
#N/A
#N/A
#N/A
0.950
2
362.2
7.14
50.7
#N/A
#N/A
#N/A
#N/A
1.000
2
374.3
7.56
49.5
#N/A
#N/A
#N/A
#N/A
1.100
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
Figure 2: PCT view of the number of LEDs used and drive current
1.200
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
1.300
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
To keep the MR16 lamp’s cost low, we wanted to minimize the number of LEDs used. The PCT shows that, at 400 mA, 3 XB-D LEDs provide
1.400
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
light output that exceeds the design goal.
With some
we
estimate #N/A
that 3 XB-D LEDs
at 380 mA#N/A
will provide
sufficient #N/A
1.500
#N/Abasic calculation,
#N/A
#N/A
#N/A
#N/A
1.600
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
light output.
1.700
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
1.800
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
Thermal Requirements
1.900
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
#N/A
With the XB-D LEDs operating at about 4 W
power, the#N/A
thermal requirements
for this reference#N/A
design are#N/A
not so difficult.
2.000of input
#N/A
#N/A
#N/A
#N/A About #N/A
75% of the input power will be converted to heat, which the heat sink must be able to dissipate. We selected a commercially available
This document is provided for informational purposes only and is not a warranty or a specification. For product specifications, please see the data sh
Copyright ©The
2009-2011
rights
The information
in this3,
document
is subject toachange
notice. Cree, ring
the Cree logo and
heat sink that also serves as the lamp housing.
heatCree,
sinkInc.
is All
part
ofreserved.
a kit, shown
in Figure
that includes
metalwithout
optic-locking
and plastic driver-housing cap.
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
5
XLamp ® XB-D LED MR16 Reference Design
Figure 3: Heat sink/housing kit components
The thermal demands of this reference design are not an issue and we did not perform thermal simulation. We did use a thermocouple
to perform thermal testing to verify the performance of the heat sink.
Driver
The driver for this MR16 lamp must be located inside the lamp housing. We decided to use a market‑ready constant‑current driver that
fits within the MR16 form factor and matches the design’s current and voltage range.
Figure 4: Driver
Secondary Optics
Although many different lens optics are available for an MR16 spotlight, this design targets the 20-W equivalent 25° market. We selected
a 3-in-1 lens optic from LedLink, shown in Figure 5.
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
6
XLamp ® XB-D LED MR16 Reference Design
Figure 5: XB-D MR16 optic
4. Calculate the number of LEDs
Using Cree’s PCT, we determined that 3 XLamp XB-D LEDs produce sufficient light to meet the 280-lm design goal.
5. Consider all design possibilities
There are many ways to design an LED-based MR16 lamp. This reference design aims to show that the XB-D LED enables an MR16 lamp
offering superior performance.
The XB-D LED offers a wide range of color temperatures. As highlighted in Table 6, we selected a warm white LED for this MR16 lamp
design. By selecting an LED from a low-level flux bin, we ensured that this design meets its goals using an LED that is readily available.
Table 6: XB-D order codes
Color
CCT Range
Min.
Warm White
2,600 K
Max.
Base Order Codes
Min. Luminous Flux @
350 mA (lm)
Order Code
Group
Flux (lm)
Q2
87.4
XBDAWT-00-0000-00000LAE7
Q3
93.9
XBDAWT-00-0000-00000LBE7
Q4
100
XBDAWT-00-0000-00000LCE7
3,700 K
6. Complete the final steps: implementation and analysis
Using the methodology described above, we determined a suitable combination of LEDs, components and drive conditions. This section
describes how Cree assembled the MR16 lamp and shows the results of the design.
Prototyping Details
1. We verified the component dimensions to ensure a correct fit.
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
7
XLamp ® XB-D LED MR16 Reference Design
Figure 6: XB-D MR16 lamp components
2. Following the recommendations in Cree’s Soldering and Handling Application Note for the XB-D LED, with an appropriate solder paste
and reflow profile, we reflow soldered the LEDs to the metal core printed circuit board (MCPCB) and cleaned the flux residue with
isopropyl alcohol (IPA).
3. We soldered the driver input wires to the MCPCB.
4. We tested the connection by applying power to the LEDs and verified the LEDs lit up.
5. We applied a thin layer of thermal conductive compound to the back of MCPCB and attached it to the heat sink/housing with screws.
6. We fit the LED driver into the heat sink/housing, covered it with the plastic housing cap and secured the cap to the heat sink/housing
with screws.
7. We placed the optic on the LED MCPCB, aligning the positioning tabs, and secured it to the outer rim of the heat sink/housing with
the metal locking ring.
8. We performed final testing.
Results
Thermal Results
Cree verified the board temperature with a thermocouple to confirm that the thermal dissipation performance of the heat sink is sufficient.
Based on the measured solder point temperature of 65 °C, the junction temperature (TJ) can be calculated as follows.
TJ = TSP + (LED power * LED thermal resistance)
TJ = 65 °C + (1.3 W * 6.5 °C/W)
TJ = 73 °C
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
8
XLamp ® XB-D LED MR16 Reference Design
Estimated LED lifetime
Based on thousands of hours of long-term testing of the XB-D LED at higher temperatures than the measured 65 °C TSP, Cree expects an
L70 lifetime significantly longer than the 50,000-hour goal for this design.
Optical and Electrical Results
We obtained the results in Table 7 by testing the XB-D MR16 lamp in a 1.5-meter sphere after a 30-minute stabilization time.4 As the table
shows, the lamp exceeds the 880-cd CBCP and 280-lm light output targets using less than 5 W of power. The MR16 lamp also meets the
ENERGY STAR efficacy, CCT and CRI requirements.
Table 7: XB-D MR16 lamp steady-state results
Characteristic
Unit
Result
CBCP
cd
890
Light output
lm
308
Power
W
4.6
Efficacy
lm/W
67
CCT
K
3110
CRI
100-point scale
82
mA
380
Current
We also tested the intensity distribution of the XB-D MR16 lamp.5 Figure 7 shows an even intensity distribution for the 27° beam angle.
Figure 7: Angular luminous intensity distribution of XB-D MR16 lamp - 27° beam angle
Table 8 shows the illuminance of the XB-D MR16 lamp at various distances from the light source.
4
5
Testing was performed at Cree’s Shenzhen Technology Center.
Testing was performed in a type B goniometer at Cree’s Shenzhen Technology Center. AN IES file for the MR16 lamp is available.
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
9
XLamp ® XB-D LED MR16 Reference Design
Table 8: XB-D MR16 illuminance – 27° beam angle
Illuminance
Height
Eavg
Emax
Eavg
Emax
Diameter
1m
3.3 ft
53.3 fc
82.3 fc
573.1 lx
886.4 lx
46.6 cm
1.5 ft
2m
6.6 ft
13.3 fc
20.6 fc
143.3 lx
221.4 lx
93.2 cm
3.1 ft
3m
9.8 ft
5.9 fc
9.1 fc
63.7 lx
98.4 lx
139.9 cm
4.6 ft
4.m
13.1 ft
3.3 fc
5.1 fc
35.8 lx
55.3 lx
186.5 cm
6.1 ft
5m
16.4 ft
2.1 fc
3.3 fc
22.9 lx
35.4 lx
233.1 cm
7.7 ft
Conclusion
This reference design illustrates the superior performance of an MR16 lamp based on the Cree XLamp XB-D LED. The MR16 lamp
components are all commercially available, obviating the need for the time and expense of developing custom parts during the design
of an extremely capable lamp. The small footprint of the XB-D LED enables the use of lower cost, smaller size and higher efficiency LED
drivers and provides more room for the LED driver and heat sink in space-constrained designs such as an MR16 lamp. The lighting-class
performance of the Cree XLamp XB-D LED makes it an attractive design option for an LED-based MR16 lamp.
Bill of materials
Table 9: Bill of materials for high‑CRI MR16 lamps
Component
Company
Order Code/
Model Number
Web Link
Driver
TXM Power Co.
TXM26-0000-XX
www.ledpower.com.cn
Heat sink/housing, optic
holder, base
Super Heat Pipe
S3.7-MR16
www.zklhcd.cn
LED
Cree, Inc.
XBDAWT-00-0000-00000LBE7
XB-D product page
Optic
LedLink Optics, Inc.
LL03LU-DO25
www.ledlink-optics.com/productsmodule.aspx
Reliance on any of the information provided in this Application Note is at the user’s sole risk. Cree and its affiliates make no warranties or representations about, nor assume any
liability with respect to, the information in this document or any LED-based lamp or luminaire made in accordance with this reference design, including without limitation that
the lamps or luminaires will not infringe the intellectual property rights of Cree or a third party. Luminaire manufacturers who base product designs in whole or part on any Cree
Application Note or Reference Design are solely responsible for the compliance of their products with all applicable laws and industry requirements.
Copyright © 2012-2016 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree®,, XLamp® and EasyWhite® are registered trademarks and the Cree logo is a
trademark of Cree, Inc. ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency. Other trademarks, product, and company names are the property of their respective owners and
do not imply specific product and/or vendor endorsement, sponsorship or association. For product specifications, please see the data sheets available at www.cree.com. For warranty information, please
contact Cree Sales at [email protected].
10