Straight Talk About Indoor LED Luminaires. Terry Clark Founder & CEO Finelite, Inc.

Transcription

1 Straight Talk About Indoor LED Luminaires Terry Clark Founder & CEO Finelite, Inc.

2 Straight talk about indoor LED luminaires Who is this guy and why is he qualified? Why are LED luminaires hard to get right? What steps we can take right now? Page 2

3 Terry Clark Has 20 years in high tech and 25 years in lighting Focuses is on Schools and Offices (Indoor only) Knows T8, T5, T5HO lamps and white LEDs Knows task lights and suspended, recessed, wall-mounted, surface-mounted luminaires with and without sensors and control Works with CEC & NYSERDA in data-driven research Is open to any of your questions Page 3

4 Why are LED luminaires hard to get right? Hype is a problem Many new technologies must work together We are missing critical standards It can be very costly to fix field problems Page 4

5 Hype is a problem LED lighting systems can cut lighting energy costs as much as 80% and drastically reduce maintenance costs A major US corporation LEDs are a simple way to transform lighting and improve the well being of our environment. A major International corporation Our LED fixtures for commercial buildings use 25% - 50% less energy than fluorescents and last 5 times longer. A VC-financed LED luminaire manufacturer Page 5

6 Here is important data for you part lumens in one package Heat sinking and connections included 85 CRI great color consistency 2700K, 3000K, 3500K, 4100K B50 42,000 hours to L92 (Yes, 92%) Dimmable 10 day lead time Page 6

7 Here is important data for you part lumens in one package Heat sinking and connections included 85 CRI great color consistency 2700K, 3000K, 3500K, 4100K B50 42,000 hours to L92 (Yes, 92%) Dimmable 10 day lead time $1.80 each ($0.5 / kilo lumen) Page 7

8 Here is important data for you part 3 Page lumens in one package Heat sinking and connections included 85 CRI great color consistency 2700K, 3000K, 3500K, 4100K B50 42,000 hours to L92 (Yes, 92%) Dimmable 10 day lead time $1.80 each ($0.5 / kilo lumen) The DOE is targeting $5.00 / kilo lumen for the LED in 2015.

9 Here is important data for you part 4 4-foot Super T8 lamps (3,100 lumens) Available from GE, OSRAM, Philips 1.2 BF T8 ballasts 90K hrs at $10.00 each Dimming ballasts at $35 - $65 each Luminaires achieve 87.5% - 94% efficiency and deliver 85 to 92 lumens / watt Finelite will ship them to you in 10 days. Page 9

10 Hype is a problem We are trying to cut 10 years off of the normal introduction cycle No one has time for qualifiers VCs are changing the dynamics Early adopters are being burned The noise is drowning out the fact that good work is being done to address key issues and that LEDs are ready today for SOME important applications Page 10

11 Hype is a problem Here is the potential result We are trying to cut 10 years off of the normal introduction cycle No one has time for qualifiers VCs are changing the dynamics Early adopters are being burned The noise is drowning out the fact that good work is being done to address key issues and that LEDs are ready today for SOME important applications On 4/16/10 the Edison Report says: Air Force Bans LEDs Page 11

12 Many new technologies must work together Total system or luminaire reliability is the product of all the individual reliability considerations as follows: R Luminaire = R LEDs * R optical * R PCB * R Finish * R mechanical * R Thermal * R Housing * R Gaskets * R Sealants * R Electrical * R Driver * R manufacturing SOURCE: Phillips Hadco Page 12

13 We are missing critical standards What we have: LM79 luminaire measurement standards LM80 LED test data collection & format set Energy Star and Lighting Facts Label What we are missing: How to relate LM80 to lumen depreciation for an LED How to relate LED lumen maintenance to Luminaire lumen maintenance How to measure color quality (CQMS is in process) How to measure color shift over time How to enforce damages for outrageous claims Page 13

14 Page 14 Actual LM80 data up to 3,000 hours

15 Page 15 Actual LM80 data up to 6,000 hours (Energy Star Requirement)

16 Page 16 We are missing critical standards

17 Page 17 Actual LM80 data up to 10,000 hours

18 Page 18 We are missing critical standards

19 It can be very costly to fix problems: 3 examples Page 19 Issue #1: We are all familiar that current 4 fluorescent lamps turn off to let us know they are at the end of life. LEDs will not do this.this raises the very real question of how will the end user know it is time for a replacement?

20 Page 20 It can be very costly to fix problems: 3 examples

21 It can be very costly to fix problems: 3 examples Page 21 Issue #2: Whose responsibility is it to disclose the maintenance costs?

22 It can be very costly to fix problems: 3 examples Page 22 Issue #3: Color can shift over time with LEDs. If that happens, one segment failure means replacing the entire system

23 Remember, we ve been reviewing just ONE application Page 23

24 Now, let s look at task lighting Page 24

25 LEDs are perfect for task lighting New, LED task luminaires provide the right amount of light exactly where you need it Old, fluorescent task luminaires simply do not work - Too much light - Too much glare - Too much energy - Wrong Shape Fat and long Page 25

26 Here is why old fluorescents are too bright Provides too much light 80% of the people turn them off! Often fc Light Levels (fc) Often fc Where else in the project are these the only choices? Traditional fluorescent task lights place 3 to 4 times more light on the surfaces than is recommended! Page 26

27 LEDs provide the right amount of light and energy fc fc Page 27

28 LED lamps have similar benefits w An additional 30-45fc The right amount of light and energy lumens 7-8W Page 28

29 LED task luminaires need new selection criteria Make sure you investigate: Dissipation of LED heat LED color (quality & uniformity) Performance (demand 40 to 50 lumens per watt) Cost (prices vary greatly) Look, adjustability, & feel Warranty & support Coming soon: Energy Star & SSL Quality Advocates Page 29

30 LED allow for system solutions Combine LED task luminaires into a system to put the right amount of light where you need it 1. Use a 6w Undercabinet at each 3 or 4 binder bin or shelf 2. Place 6w Desk Lamp at primary work surface for paper-based tasks 3. Optional 3w Desk Lamp may be needed for especially demanding visual tasks or older workers 4. Optional Occupancy Sensor increases energy savings Page 30

31 Use LED luminaires in NEW ways to light the task Use LED task lighting as the FIRST STEP to accomplish all of your objectives: 1. Cut energy use by 50% 2. Deliver the right light levels and luminance uniformity 3. Make it beautiful 4. Achieve strong user preference 5. Keep within existing budgets Page 31

32 Breakthrough in General Lighting An Overview Page 32

33 Finding # 1 Light the task first Make LIGHTING THE TASK properly your FIRST priority! Use task lighting as the PRIMARY layer of light New, LED task luminaires provide the right amount of light exactly where you need it Old, fluorescent task luminaires simply do not work - Too much light - Too much glare - Too much energy Page 33 #1

34 Finding # 2 Light the vertical surfaces Page 34 #2

35 Finding # 3 Ambient light needs only 0.4 w/ft 2 When, Task lighting is correct, Vertical surfaces are lighted Then, Ambient lighting needs only 0.4 w/ft 2 Page 35 #3

36 Finding # 3 High-efficiency T8 luminaires Use high-efficiency pendant T8 luminaires with only 1-lamp in cross section 1-lamp T8 cross section Over 90 lumens/watt 12 to 16 ft on center 0.4 w/ft 2 works! 0.4 w/ft 2 $2.33/ft 2 installed cost Page 36 #3

37 Finding # 3 High-performance recessed luminaires High-performance recessed luminaires can also be used to provide ambient light at w/ft 2 2-lamp T BF - Over 80 lumens/watt - 8 x 10 on center spacing w/ft w/ft 2 works! 1-lamp T BF - Over 85 lumens/watt - 8 x 10 on center spacing w/ft 2 Page 37 Advantages of 1-lamp approach: - 50% fewer lamps - 20% energy savings over 2-lamp #3

38 Key results summary Three layers of light satisfy users at under 0.5 w/ft 2 When task lighting is not done properly, all carry part of the load User satisfaction is achieved with half of the energy used before Less material is used Fewer lighting controls are needed Installation costs are optimized Air conditioning loads are reduced Operating costs are slashed Page 38

39 Verify the quality: Task Task (fc) Luminance (cd/m 2 ) Page 39 Meets targets Luminance Uniformity Ratios Around Seating Area = 11:1 Across Broad Viewing Areas = 26:1

40 Verify the quality: Vertical Vertical (fc) Luminance (cd/m 2 ) Page 40 Meets targets Luminance Uniformity Ratios Around Seating Area = 33:1 Across Broad Viewing Areas = 1.3:1

41 Adding the layers and verify the quality: Task + Vertical Task + Vertical (fc) Luminance (cd/m 2 ) Page 41 Meets targets Luminance Uniformity Ratios Around Seating Area = 6:1 Across Broad Viewing Areas = 2.2:1

42 Verify the quality: Ambient Ambient (fc) Luminance (cd/m 2 ) Page 42 Meets targets Luminance Uniformity Ratios Around Seating Area = 5:1 Across Broad Viewing Areas = 0.5:1

43 Adding all the layers and verify the quality Task + Vertical + Ambient (fc) Luminance (cd/m 2 ) Page 43 Meets targets Luminance Uniformity Ratios Around Seating Area = 2.6:1 Across Broad Viewing Areas = 1.5:1

44 Key results energy savings Documented 56% TOTAL ENERGY SAVINGS Design Calculations and Installed Cost Estimates: Standard Practice: 1.1w/ft 2, 3-lamp T8 parabolic, 8 x 10 on center spacing, T8 Undercabinet task lights Breakthrough: 0.48w/ft 2, 1-lamp T8 indirect/direct pendant, 12 on center spacing, 6W LED Undercabinet task lights Page 44

45 Remember, know the costs for best practices Lower Installed Cost Design calculations and installed cost estimates Standard Practice: 1.1w/ft 2, 3-lamp T8 parabolic, 8 x10 on center spacing, T8 Undercabinet task lights Breakthrough: 0.48w/ft 2, 1-lamp T8 indirect/direct pendant, 12 on center spacing, 6W LED Undercabinet task lights Page 45

46 2. Best practice check list summary Document current best practice Compare LED-luminaires to best practices Set the criteria in advance Have the data to say go or slow Do this for every major application Share your data-based results Page 46

47 3. Know the language of LED systems Here are important sources: 1. DOE IES PNNL Finelite - Page 47

48 Thank you for your attention Thank you for your attention I am happy to take questions or send them to me at tclark@finelite.com I am happy to take questions or send them to me at tclark@finelite.com Page 48