GELcore

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LED Street Lighting
October 20th, 2009
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Lighting The Energy Consumer
In US alone lighting consumes 20 of energy
generated 6 quadrillion BTU in 2000 (1.5
trillion kW-hr) 10 savings implies 17-18
fewer power plants 9 million metric tons
lower CO/CO2 emissions/yr Worldwide these numbers
are quadrupled
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Q Where would you be without light?
A In the Dark!
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LED MARKET PENETRATION

• LCD Backlighting
• Improved Battery Run Time
• White Enables Full Color Displays
• Better Product Reliability
• Eliminates Inverter

• Traffic Signals
• Up to 90 Energy Savings
• Reduced Maintenance Costs
• 5X Longer Life
• Less than 2 year ROI

• Automotive
• Higher Reliability (lt10 DPM)
• Robust to Shock Vibration
• lt 50 Power Consumption
• Quicker On-Time (Exterior)

• Large Area Displays
• High Quality Resolution Contrast
• Broad Color Capability
• Digital Processing

Exterior Signage
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What is an LED?

• LED Light Emitting Diode
• A solid state light source (semiconductor
  diode).
• Robust design
• When an electrical charge is applied, light is
  generated from electronic transitions and
  released as a photon.
• Twenty years on the market.

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LED Performance Exceeding Projections
Outdoor Light
Indoor Specialty
Indoor General
ColorSpecialty
White Specialty
GELS CORE ADJACENT
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LED
Lumens/watt (efficacy)
Current
HID
Linear Fluorescent
1 Year Ago
CFL
Incandescent
2002
2004
2008
2010
2012
2014
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LED Efficiency

• LED Features
• Initial Lumens Per Watt (Efficacy) Rapidly
  Improving Meeting Traditional Light Sources
• 2010 LED projections exceed 129 LPW
• 2009 available LED product at 100 LPW
• Current Lamp Level Efficacy
• 400W HPS 127.5 LPW
• 400W MH 95 LPW
• LED Benefit
• Lower Power Consumed For Equal or More Light
  Improved Efficiency!

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LED Durability

• LED Features
• No filament failures, no cathode failures, no
  glass to break
• LED Benefit
• Rugged vs. Traditional Lamps
• Vibration resistance

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LED Controllability

• LED Features
• Instant On
• Dimming
• LED Benefit
• Energy Reduction
• Improved pay-back
• Quality of Light

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LED vs HID Life and Lumen Maintenance
LED Maintenance

• Failure mode is different
• HID failure is lamp not functioning
• LED failure is 85 lumen maintenance but still
  functions
• Increased service life
• Est. HID maintenance costs are high
• Relamp 25-100/fixture
• Spot 200-500/ fixture
• LED maintenance is minimal
• LED systems require surge protection
• 5 year LED warranty minimum

10 yr
HID
75 Output
85 Output L85
LED
2 yrs
INITIAL LUMENS
HBLED Life Rating 100 Working
400W HID Pulse Start Suggested Relamp
400W HID Pulse Start Life Rating
50 Dead
50,000
12,500
25,000
37,500
1000
(11.2 )
(2.8)
(8.4)
(5.6)
Hours (Years)
LEDs extends re-lamp cycle and reduces spot
replacement
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LED Photometric Control

• LED Features
• Multiple Light Source Emitter
• Directional Source
• 360 deg. Lamp
• Individually Controllable
• LED Benefit
• Color Consistency Unit To Unit
• Greater Optical Control Light where desired
• Improved Fixture Efficiency Fewer Fixtures /
  Lower Watts
• Improved Control Of Spill Light Less Light
  Pollution / Light Trespass

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LED Uniformity
At 50 from pole, LED EvolveTM provides same
light level as at base (1.75 FC) HID light
levels drop off 3X

• LED Original Optical Design (Match HID)

• HID Standard HID Photometry

• LED Improved Optical Design Optimized For
  Uniformity

GE LED Area Light
400W HID Area Light
Smoother gradient demonstrates improved uniformity
Improved light control provides for less light
trespass more light where desired
GE LED lt 21
MH gt 51
Parking Lot Design Plan View
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Rogers, ARK Site
LEDs offer opportunity for improved uniformity
458w MH
205w LED
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Rogers, ARK Site
LED Area Light
Traditional HID Metal Halide
Site Benefits
Avg. watts per fixture 454 W Site Wattage
16.8 kW Relamp Interval 2
years
Avg. watts per fixture 150 W Site Wattage
5.8 kW Relamp Interval
12 Years
Energy Savings
65 lower watts
39 fixtures 18 Type 4 _at_ 85W
21 Type 5 _at_ 205W
37 fixtures _at_ 454W ea.
11 kW saved
4,900 / yr.
Maintenance Savings
Relamp Extend 6X

System Benefits
Fixture efficiency 59.24 System
LPWinitial 54.8 lpw System LPWt
2years 41.1 lpw
Fixture efficiency 81 System LPWinitial
65.8 lpw System LPWt2 years
65.4 lpw System LPWt12years 46.1 lpw
Improved Efficacy 37
Improved 2 Yr Lumens 58
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Site Lighting Performance Off-site Visibility
6 Pole Heights Images
GE LED
Metal Halide Flat Glass
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6 Pole Heights Images
Site Lighting Performance On-site visibility
1 Pole Height Images
GE LED
Metal Halide Flat Glass
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Rogers, ARK Site
LEDs more efficiently address perimeter lighting
requirements
GE LED
HID
GE LED 200W on pole
MH 908 W on pole
LED is a great solution for tight local
ordinances and trespass control
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Uniformity
458 watt HID
205 watt LED
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Rogers, ARK Site
Vertical illuminance improves with LEDs
HID
LED
GE LED
HID
LED
Security evaluated performance via security
cameras acceptable
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Leavenworth, KS
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Why use LED Area Lighting for parking lots?
LED

• Save energy
• Less site wattage due to uniformity
• Instant re-strike and dimmable (2010)
• Lower LPD (better utilization)
• Reduce maintenance
• Fewer lamps to replace dispose
• Be a good neighbor
• Less light trespass with reduced shielding
• No up-light
• Reduce wasted light
• Improve visual acuity
• Smoother visual transition due to uniformity
• Better vertical illuminace
• Environmentally conscientious
• Reduce hazardous waste
• Reduce energy consumption
• Field Replaceable components (Light Engine,
  Driver, etc)

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Target focus

• Low Lighting Power density (LPD)
• Sites with tight light trespass constraints and
  low pole heights
• Title 24 and LEEDS
• High energy costs and utility rebates available
• Customers with high maintenance costs
  (decentralized)
• Understand and accept lower light level designs
  or Emin
• MLO (Model Lighting Ordinance) adoption
• Want to Green / perceived Environmental
  Stewardship
• 400W MH/HPS or lower wattage

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FPL Beta Site Juno Beach, FL
HPS
LED
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AEP Beta Site Columbus, OH
HPS
LED
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Key City / Municipality Needs
HID HPS
Induction
E-HID MH
LED

• Performance Meets RP-8 criteria
• Whiteness Light Scotopic advantage
• Design Quality / Reliability over time
• Acceptable ROI / Pay Back (lt8 years)
• Total Cost ( Lifetime Cost )
• Installed Base / Long term relationship
• Meets Stimulus Funding Criteria
• (Reduced Energy and Environmental Impact)
• Environmental Stewardship / Light Trespass
• (IESNA LM-79 / BUG)

Best Overall Value
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GE Lighting Systems

• Analysis of GELS R150 For Clark County NV

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LED Cobra head Application Analysis
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LED Cobra head Application Analysis
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Cost Payback Analysis Municipal Examples
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LED Luminaire Technology Competencies

• Thermal
• Thermal analysis and test
• Multi-mode heat transfer simulation
• HID design experience

• Optical
• Application knowledge
• Photometric analysis and test
• Reflector design and manufacture
• Optical modeling and simulation

• Mechanical
• Fixture enclosure design
• Dust/rain seal design and test
• Comp/assy process knowledge
• Design of low cost solutions

• Electrical
• Low cost/hi-rel systems
• UL 1598 Certified Lab
• Control systems
• e-HID reliability test experience

LED Systems

• Structural
• Indoor/industrial mountings
• Outdoor/pole mountings
• Vibration analysis and test

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Solid State Lighting Key Design Factors
Product
Application
Electrical
Mechanical
Thermal
Optical
Safety Environmental
LED Forward Voltage Architecture Fault
Tolerant Power Supply Input Voltage Power
Consumption Output Current
Tolerance Analysis Mechanical Stress Fatigue Creep
Flammability (UL94) Design for Manufacturing
Impact Resistance Vibration Sealing Temp/
Moisture Dependencies Material Selections
Light Output Color Beam Angle LED Binning
Operating Temp. Range Dry/Damp/Wet Orientation Hum
idity Corrosion UV/Chemical Resistance Fault
Indicators Mis-Use / Abuse
How will it be used Install Instructions Beta
Installation Key Noise Factors Confounding
Effects Customer Service Technical Support
LED Junction Temperature Thermal
Resistance
Must address many factors in Solid State Lighting
System Design.
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Comprehensive Test Plan

• Final Test Plan based on Risk ID via DFR
  activities
• At minimum 6000 hrs life test for new Design
  Platform
• Use LED supplier data ( LM80), _at_ min. perform
  shadow test
• Evaluate LEDs at multiple currents
• Accelerated Life Testing (ALT) specific to LED
  Drivers

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Before 2009/06/11
After 2009/08/06
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Before 2009/06/11
After 2009/08/06
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Before 2009/06/11
After 2009/08/06
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Lighting regulations and standards are becoming
more aggressive
trend
Influencing bodies
Need lighting solutions that enable adherence and
still meet quality of light needs
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US Dept. of Energy taking action

• Standards - LM-79 LED system photometric
  testing methodology
• - LM-80 LED package life/maintenance rating
  methodology
• Quality Advocates / Lighting Facts Label
• - Voluntary pledge program to assure that LED
  lighting ratings are represented accurately
• CALiPER testing program
• Next Generation Luminaries Awards
• - Recognizes excellence in the design of
  energy-efficient LED commercial
  lighting
• - Sponsored by DOE, the IES, and IALD
• ENERGY STAR
• - Establishing the industry-wide SSL criteria

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Questions?
Questions?