Efficiency Flexibility Reliability It Pays to be Smart

Leading the Way in Intelligent Lighting • Redefining industrial lighting with Intelligent LED Lighting Systems that deliver unprecedented efficiency, performance, and customer value • • • 2 Reduces lighting energy use by up to 90% Integrates smart LED-based luminaires, sensing and intelligence Optimized for rugged industrial environments Lowest total cost of ownership (TCO) Patented intelligence technology Award-winning products & company © 2012 Digital Lumens

Intelligent Lighting System Drives Maximum Savings The Complete Solution Smart LED Lights 3 ©

Efficiency Most energy efficient High performance occupancy sensing & dimming Daylight harvesting 4 ©

Efficiency Flexibility Reliability Savings Most Energy Efficient • • ✔ Lowest wattage Lowest energy use Longest life Maintenance-free ✔ 5 ✔ © 2012 Digital Lumens 290 W 2 year life Frequent maint. 450 W 2 year Frequent maint. life 155 W 12+ year No maint. life

Efficiency Flexibility Reliability Savings High Performance Occupancy Sensing & Dimming Occupancy sensors • Fully integrated into each fixture • Deliver light only where & when needed • Features three infrared sensors Facility occupancy map report • Higher ceiling heights • Improved performance • Designed by Digital Lumens Dimming • Full range dimming in every fixture • Can be programmed from 0 -100% 6 © 2012 Digital Lumens

Efficiency Flexibility Reliability Savings Controlling Sensor Delays Controls Energy Cost Sensor Log Data 7 4: 30 pm © 2012 Digital Lumens | Proprietary & Confidential 5: 30 pm Sensor Delay % “Active” ILE Energy Cost* (160 W) HIF Energy Cost* @ 15 mins (220 W) 30 sec 25. 2 % $35 / yr $190 60 sec 40. 8 % $57 $190 90 sec 52. 4 % $73 $190 3 min 72. 5 % $102 $190 5 min 89. 3 % $125 $190 10 min 98. 6 % $138 $190 * 10¢ /k. Wh

Efficiency Flexibility Reliability Savings Daylight Harvesting • • 8 Automatically assesses available ambient and gradually adjusts light output to illuminate area to target light level Photo sensors fully integrated into each fixture Depending on available ambient light, reduces lighting use by an additional 25 -50% Consistent light quality throughout the space © 2012 Digital Lumens

Flexibility Robust product & service family Intelligence Scheduling & reporting 9 © 2012 Digital

Efficiency Flexibility Reliability Savings Intelligent fixtures to address each facility’s unique needs ILE-3 -13 • 13, 000 lumens • 155 W • • 10 ALL FIXTURES FEATURE: • • • ILE-3 -18 ILE-3 -26 • 26, 000 lumens • 325 W • 18, 000 lumens • 215 W Up to 50’ mounting height Three independently rotatable LED light bars Integrated occupancy sensors Integrated daylight harvesting Wide or narrow optics options • • Onboard intelligence to manage fixture behavior Wirelessly connected to Light. Rules. TM management software 107, 000 hour lifetime rating 5 year warranty

Efficiency Flexibility Reliability Savings Light. Rules. TM Lighting Management Software Report Control • Active levels • Inactive levels • Occupancy sensor timeouts 11 © 2012 Digital Lumens • • • Energy consumption Energy cost Energy savings Facility occupancy Daylight harvesting What-if analysis

Efficiency Flexibility Reliability Savings Manage, Edit & Report Dashboard Energy Reports © 2012 Digital

Efficiency Flexibility Reliability Customize Lighting • Customize lighting profiles by zone, e. g. : • Loading docks • Frozen storage • Ambient storage • Minimize lighting energy costs while maximizing operator efficiency & safety • Automated or manual control • Managed lighting = managed costs 13 © 2012 Digital Lumens Savings

Efficiency Flexibility Reliability Savings Light. Rules Monitor Alert Digital Lumens has identified the following recommendations to increase energy efficiency and reduce lighting costs in your facility: • Reduce occupancy timeouts in the loading dock area • Decrease inactive levels in Room 5 14 • Remote service • Ensures maximum efficiency • Quarterly & annual reports • Recommendations to optimize energy efficiency • Email alerts

Reliability Fully certified, labeled & listed Tested & proven – case studies 15 ©

Efficiency Flexibility Reliability Savings Proven Reliability • Robust design • Rugged and integrated technology • Tested, certified, listed, and labeled • UL, CE/CB, DOE, Lighting Facts, DLC, NEMA IP Rating, LM 79, LM 80 • Outstanding support • 5 -year warranty • Backed by world-class lighting professionals • 107, 000 -hour lifetime rating 16 © 2012 Digital Lumens

Efficiency Flexibility Reliability Savings Tested & Proven • • • Deployed in the world’s leading industrial facilities Warehouses, cold storage, manufacturing, aviation, etc. More than 200 large-scale deployments New Orleans Cold Storage 17 © 2012 Digital Lumens

Efficiency Flexibility Reliability Savings Case Study Energy Savings Highlights Environment Previous Lighting Energy Savings Manufacturing 400 Watt HPS 75% Dry Warehouse 1, 000 Watt HID 90% HIF 90% Cold Storage (mobile racking) 400 Watt HID 97% Cold/New Construction NA 75 -90% over alternatives Cold Storage 18 © 2012 Digital Lumens

Savings summary Lighting cost comparison Digital Lumens Advantage 19 © 2012 Digital Lumens

Efficiency Flexibility Reliability Savings Intelligent Lighting System Savings Summary Incentives LED power reduction (watts) Fine-tuning HVAC & chiller load reduction Maintenance 20 © 2012 Digital Lumens Intelligence

TCO Comparison Intelligent Light System vs. Alternatives 100 Lights @ $. 10/k. Wh HID HIF System Type 400 W MH 6 L T 5 Competitor ILE-3 -13 Fixture Watts 450 331 160 155 (including ballasts) 21 LEDs without sensors HIF with sensors Total Lighting Time 8, 760 (100%) Annual Energy Expense $39, 420 $28, 996 Percent Energy Savings 5 Yr Maint. Expenses* 5 Yr TCO ** • • 7, 884 (90%) LEDs with Digital sensors Lumens ILS 8, 760 (100%) 4, 380 (50%) 1, 752 (20%) $26, 096 $14, 016 $7, 008 $2, 716 26% 34% 64% 82% 93% $15, 000 $10, 000 $0 $249, 600 $174, 978 $165, 480 $154, 540 $124, 540 $103, 780 Considering lamp life and operating hours, and maintenance costs per fixture ** Annual energy expense x 10 year + maintenance + capital expense (incl. labor)

Efficiency Flexibility Reliability Savings Trial. Pak for Pre-installation M&V • Allows trial installation with full Light. Rules capability • Confirms assumptions for: • Energy reduction • Daylight harvesting • Occupancy • Easily exportable M&V reports 22 © 2012 Digital Lumens