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SEPTEMBER 18TH AND 21ST, 2012. ADVANCED LIGHTING DESIGN. SEPTEMBER 18TH AND 21ST, 2012. ADVANCED LIGHTING DESIGN. LIGHTING DESIGN PROCESS. What am I trying to do? How am I going to do it? What lamp (or light source) will do what I need it to do? What fixture will accept that light source?. - PowerPoint PPT Presentation
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ADVANCED LIGHTING DESIGN
SEPTEMBER 18TH AND 21ST, 2012
• What am I trying to do?
• How am I going to do it?
• What lamp (or light source) will do what I need it to do?
• What fixture will accept that light source?
LIGHTING DESIGN PROCESS
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
• Energy Efficient Lighting should never “look” energy efficient
• Do our determining factors change just because we are using energy efficient fixtures?
• Draw comparisons to energy efficient appliances...are you giving anything up? Are you losing expected qualities in order to achieve energy efficient standards?
ENERGY EFFICIENT LIGHTING
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
• What are the most important “determining factors”?
• Color temperature, Color Rendering, Glare Control, Dimming, Effect on People
• Use the same critical process in selecting energy efficient lighting that you would use for “normal” lighting.
ENERGY EFFICIENT LIGHTING
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
• Good for intense, directional
lighting such as highlighting
• Instant “on” to full intensity
• Full range dimming
• No mercury
• Very high initial cost
• Emerging technology with potential
to be obsolete quickly in favor of
advanced product
• Good for wide-spread, softer
illumination
• Not instant “on” to full intensity
• Not true full range dimming
• Mercury disposal issues
• Affordable initial cost
• Established technology that has
improved greatly
LED CFL
LED TECHNOLOGY
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
• EXACT COLOR TEMPERATURE LISTING
• COMPATIBILITY OF DIMMERS WITH DRIVER (MLV, ELV, 0-10 VOLT)
• ABILITY TO DISSIPATE HEAT
• ABILITY TO CONTROL GLARE
• RELIABILITY OF MANUFACTURER
• REMOTE PHOSPHOR vs. MULTIPLE ARRAY
• SUSTAINABILITY / ABILITY TO UPGRADE COMPONENTS
• LIFE OF LED (LM-70) / LIFE OF DRIVER???
• LENGTH OF WARRANTY...(FIXTURE, FIXTURE + LABOR)
• ACCURATE COMPARISON TO NON-LED LIGHT SOURCE
WHAT TO LOOK FOR
LED TECHNOLOGY
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Lumen OutputEfficacy
Color Rendering
Color Temperature
D.O.E. LIGHTING FACTS LABEL
www.ssl.energy.gov/
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
New Construction• Color Temperature• Color Rendering• Quantity of Light• Cutoff / Glare Control• Energy Efficiency• Initial Cost• Effect on People
DESIGN CONSIDERATIONS
Retrofit• Compatibility with
existing fixtures• Color Temperature• Color Rendering• Quantity of Light• Cutoff / Glare Control• Energy Efficiency• Initial Cost• Effect on People
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Color Temperature
The color temperature is a specification of the color appearance of a light source, relating to the color of a reference source heated to a particular temperature, measured by the thermal unit Kelvin. The measurement can also be described as the “warmth” or coolness” of a light source.The outward appearance of the color of a light source (i.e. warm or cool).
Glossary definitions as defined by Architectural Lighting Magazine 2008.
LIGHTING TERMINOLOGY
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
INC
AN
DESC
EN
T
3000K
FLU
OR
ESC
EN
T
3500K
FLU
OR
ESC
EN
T
4100K
FLU
OR
ESC
EN
T
4200K
CO
OL
WH
ITE
NO
ON
DA
YLI
GH
T
LOW
VO
LTA
GE H
ALO
GEN
27
00K
30
00K
28
50K
35
00K
41
00K
42
00K
60
00K
CORRELATED COLOR TEMPERATURE (CCT)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Color Rendering
A scale of the effect of a light source on the color appearance of an object compared to its color appearance under a reference light source. Expressed on a scale of 1 to 100, where 100 indicates no color shift. A low CRI rating suggests that the colors of objects will appear unnatural under that particular light source.
The ability of a light source to render colors in comparison to other light sources of a similar color temperature.
Glossary definitions as defined by Architectural Lighting Magazine 2008.
LIGHTING TERMINOLOGY
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
SPECTRAL POWER DISTRIBUTION
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGNADVANCED LIGHTING DESIGN
45 deg. cut-off angle Not 45 deg. cut-off angle
UNDERSTANDING CUT-OFF
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGNADVANCED LIGHTING DESIGN
COMPARING CFL TO LED
Fixture #1: 6” aperture 32 watt CFL Recessed Downlight
http://www.junolightinggroup.com/Attachments/images/content/SpecSheets/J1.1.24_C6H%20Downlight%20Triple.pdf
Fixture #2: 6” aperture 21 watt LED Recessed Downlight
http://www.junolightinggroup.com/attachments/images/content/specsheets/L6-L600H.pdf
Fixture #3: 6” aperture 21 watt LED Recessed Downlight
http://www.junolightinggroup.com/attachments/images/content/specsheets/L6-L600P.pdf
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGNADVANCED LIGHTING DESIGN
COMPARING CFL TO LED
Fixture #1: 6” 32w CFL
•59.6% fixture efficiency•1.37 spacing criteria•43 fc at 6’ x 6’ spacing•18,000 hour lamp life•lower initial cost
Fixture #2: 6” 21w LED
•64lm p/watt fixture efficiency•0.86 spacing criteria•44 fc at 6’ x 6’ spacing•LM70 at 50,000 hours•higher initial cost
Fixture #3: 6” 21w LED
•44lm p/watt fixture efficiency•0.92 spacing criteria•38 fc at 6’ x 6’ spacing•LM70 at 50,000 hours•higher initial cost
CASE STUDY #1 - WOMENS’ CLOTHING STORE (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #1 - WOMENS’ CLOTHING STORE (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Existing Lighting:• Track lighting with 50 watt halogen PAR30/HIR/NFL25 lamps (qty
70)• Track lighting with (2) 24 watt CFL wall wash heads
•Linear fluorescent wall grazing in alcovesProblems:
• Overall wattage consumption of halogen track heads (3500 watts)•Heat from halogen lamps and impact on HVAC system•Relatively low lamp life (5000 hours)
CASE STUDY #1 - WOMENS’ CLOTHING STORE (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Most Important Criteria:•Reduce overall wattage consumption•Reduce heat output and impact on HVAC system•Reduce fixture maintenance by increasing lamp life•No negative impact on color output of lighting•No reduction in the quantity of light at product displays
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #1
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #1
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #2
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #2
INVERSE SQUARE LAW
FOOTCANDLES = CBCP / DISTANCE SQUARED
50PAR30/HIR/NFL25
2810 CCT100 CRI**
620 Lumens3200 CBCP8’ Distance
50 Footcandles
50 Watts
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
LR30/25/27K/800
2700 CCT85 CRI
800 Lumens4050 CBCP8’ Distance
63 Footcandles
13 Watts
DFN/30SN/W27/NFL
2700 CCT85 CRI
725 Lumens3014 CBCP8’ Distance
47 Footcandles
13 Watts
CASE STUDY #1 - WOMENS’ CLOTHING STORE (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Change to LED PAR30:•Immediate reduction in wattage consumption•Immediate reduction in heat output•50,000 hour lamp life is 10 times existing lamps•20% increase in light output
5013
702592.59
2.59106
528081
8081
.10
808
2800
8083.47
37
CASE STUDY #1 - WOMENS’ CLOTHING STORE (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #2 - SHOE SHOWROOM (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Most Important Criteria:•Meet or exceed local energy codes (1 watt sq. ft) for ambient lighting•Meet or exceed local energy codes (allowance) for “retail” lighting•Excellent color temperature and color rendition•Low fixture maintenance•Clean, architectural appearance that complements architectural environment•Highlight products in a better way than typical track lighting
CASE STUDY #2 - SHOE SHOWROOM (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #2 - SHOE SHOWROOM (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
“Typical” track lighting approach advantages:•inexpensive initial fixture cost•provides ultimate flexibility for changing displays•end-user familiarity
“Typical” track lighting approach disadvantages:•requires many heads to achieve a “wash” of light•requires end user to constantly pay attention to proper aiming of lights•does not support “clean” and architectural appearance to showroom
CASE STUDY #2 - SHOE SHOWROOM (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #2 - SHOE SHOWROOM (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #2 - SHOE SHOWROOM (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Lighting Fixture Types:•Linear T5HO (3500K) cantilevered asymmetric wall washers (13.5 watts per linear foot)•Architectural indirect pendant system with integrated adjustable accent lighting for highlights•Indirect component is linear T5 (standard output) fluorescent (3500K)...provides average of 20fc at .9 watts/sq. ft•Direct adjustable component is 10 watt LEDMR16/NFL25 to replace 50 watt halogen MR16 lamps•Reception areas use 20 watt dedicated LED recessed wall washers
CASE STUDY #2 - SHOE SHOWROOM (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #3 - HOUSE OF WORSHIP (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #3 - HOUSE OF WORSHIP (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Existing Lighting:• Track lighting with 75 watt halogen PAR30/HIR/NFL25 lamps (qty
100)• Pendants with (4) 39 watt BIAX CFL lamps
•Indirect / direct wall sconces with 50 watt halogen PAR20/HAL/FL35 lampsProblems:
• Overall wattage consumption of halogen track heads (7500 watts)•Heat from halogen lamps and impact on HVAC system•Relatively low lamp life (5000 hours)...maintenance is an issue due to ceiling heights
CASE STUDY #3 - HOUSE OF WORSHIP (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Most Important Criteria:•Reduce overall wattage consumption•Reduce heat output and impact on HVAC system•Reduce fixture maintenance by increasing lamp life•No negative impact on color output of lighting•No reduction in the quantity of light at pews•Fixtures must be able to dim smoothly, especially at lower levels
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #1
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #1
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #2
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #2
INVERSE SQUARE LAW
FOOTCANDLES = CBCP / DISTANCE SQUARED
75PAR30/HIR/NFL25
2810 CCT100 CRI**
714 Lumens3800 CBCP
14’ Distance
20 Footcandles
75 Watts
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
LR30/25/27K/1000
2700 CCT85 CRI
800 Lumens5100 CBCP
14’ Distance
26 Footcandles
16 Watts
DFN/30SN/W27/NFL
2700 CCT85 CRI
725 Lumens3014 CBCP
14’ Distance
15 Footcandles
13 Watts
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Change to LED PAR30:•Immediate reduction in wattage consumption•Immediate reduction in heat output•50,000 hour lamp life is 10 times existing lamps•greatly reduced maintenance is biggest advantage•28% increase in light output
7513
10062006.2
6.227
524514
4514
.10
451
5000
45111.0
62
CASE STUDY #3 - HOUSE OF WORSHIP (retrofit)
CASE STUDY #4 - Office (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Fixture 13500 CCT80+ CRI
3363 LumensL70 at 50,000 hours
46 WattsSpacing Criteria ???
Fixture 23500 CCT80+ CRI
5220 LumensL70 at 50,000 hours
72 WattsSpacing Criteria 1.2 /
1.8
Fixture 33500 CCT
82 CRI3617 Lumens
L70 at 50,000 hours36 Watts
Spacing Criteria ???
CASE STUDY #4 - Office (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Fixture 1Average:Maximum:Minimum:Max/Min:Avg/Min:
40.5fc57.8fc183.2:12.3:1
CASE STUDY #4 - Office (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Fixture 2Average:Maximum:Minimum:Max/Min:Avg/Min:
53.8fc71.8fc272.7:12.0:1
CASE STUDY #4 - Office (new construction)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Fixture 3Average:Maximum:Minimum:Max/Min:Avg/Min:
42.5fc57.3fc21.32.7:12.0:1
CASE STUDY #4 - RESTAURANT (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #4 - RESTAURANT (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Existing Lighting:• Recessed lights with 50 watt halogen MR16 lamps (qty 25)• Chandelier with (12) 40 watt A-lamps
•Mini Pendants with 60 watt A-lamps (qty 5)•Wall Sconces with 50 watt halogen MR16 lamps (qty 15)
Problems:• Constant maintenance of lamp replacement
•Heat from halogen lamps and impact on wine bottles•Relatively low lamp life (2500 hours)...
CASE STUDY #4 - RESTAURANT (retrofit)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Most Important Criteria:•Reduce overall wattage consumption•Reduce heat output and impact on HVAC system•Reduce fixture maintenance by increasing lamp life•NO NEGATIVE IMPACT ON COLOR OUTPUT!•No reduction in the quantity of light tables•Fixtures must be able to dim smoothly, especially at lower levels
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #1
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #1
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #2
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
Retrofit LED Lamp Option #2
INVERSE SQUARE LAW
FOOTCANDLES = CBCP / DISTANCE SQUARED
50MR16CFL40
2810 CCT100 CRI**
??? Lumens1700 CBCP7’ Distance
34 Footcandles
50 Watts
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
LMR16/25/27K/500
2700 CCT85 CRI
500 Lumens2550 CBCP7’ Distance
52 Footcandles
10 Watts
DFN/16/W27/V2/FL
2700 CCT83 CRI
7475 Lumens950 CBCP
7’ Distance
20 Footcandles
8 Watts
• Good for wide-spread, softer
illumination
• Instant “on” to full intensity
• Step level dimming is common
• Can be used with a variety of
sensors
• Moderate initial cost
• Great for vibration sensitive areas
• Rated for 100,000 hours
• Good for wide-spread, softer
illumination
• Can also be used as a directional
source
• Not instant “on” to full intensity
• Can be used with step level
dimming
• Moderate initial cost
• Established technology that has
improved greatly...CMH
INDUCTION METAL HALIDE
INDUCTION TECHNOLOGY
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
• Good for wide-spread applications...typically not good as point source
• Industrial applications...warehouses, docks, bridges, etc.
• Excellent replacement for metal halide high bays...instant on, lamp life,
color stability
• Good replacement for parking structure interior lighting
• Good replacement for natatoriums
• Good replacement for decorative street lighting
INDUCTION TECHNOLOGY
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
• Photopic Vision (daytime / daylight vision) = design lumens
• Photopic vision is registered by the cones in your eyes
• Scotopic Vision (interior / nighttime vision) = pupil lumens
• Scotopic vision is registered by the rods in your eyes
NOTES ON VISION and PUPIL LUMENS
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
INDUCTION TECHNOLOGY
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #5 - EXTERIOR FACADE ILLUMINATION (new)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #5 - EXTERIOR FACADE ILLUMINATION (new)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #5 - EXTERIOR FACADE ILLUMINATION (new)
SEPTEMBER 18TH AND 21ST, 2012
ADVANCED LIGHTING DESIGN
CASE STUDY #5 - EXTERIOR FACADE ILLUMINATION (new)