This document summarizes a presentation titled "LEDs Demystified for Interior Designers". The presentation explains LED lighting terminology, technology, and considerations in simple terms to help designers select fixtures and lamps. It covers basic lighting terms for LEDs, how LED color works, light levels, fixture requirements, and addresses common issues and misconceptions regarding LED lighting. The goal is to educate designers on reading specification sheets and understanding LED options to properly implement LED lighting in their design projects.

2. Credit(s) earned on completion of this course will be
reported to AIA CES for AIA members. Certificates of
Completion for both AIA members and non-AIA
members are available upon request.
This course is registered with AIA CES for
continuing professional education. As such, it does
not include content that may be deemed or
construed to be an approval or endorsement by the
AIA of any material of construction or any method or
manner of
handling, using, distributing, or dealing in any
material or product.
___________________________________________
Questions related to specific materials, methods, and services will
be addressed at the conclusion of this presentation.

3.  Speaker: Diana Mesh, IES, DLF of HTA Lighting.

4.  “LEDs Demystified for Interior Designers”
 LED terminology and technology explained in simple
concise terms to assist designers in selection of lighting
fixtures and lamps.

5. 1. Basic Lighting terms for LEDs explained
2. LED color explained in detail
3. How LEDs work and why this affects your plans
4. How to understand light levels easily
5. LED fixture requirements explained

6. -you have been warned!

7. -Let’s take this apart piece by piece

8.  Color-”atmosphere”- why is it so lacking?
 Reading a spec sheet- learning a new language
 Wrong light levels- yes you are in the dark
 Electrical field issues - not remotely interesting
 The Ugly

9. CHIP ON BOARD AFTER MARKET
 When LEDs are integral to
the fixture.
 Lamps that simply screw in
or have a base to work with
an existing fixture that is not
LED by design

10. CHIP ON BOARD AFTER MARKET

11. CHIP ON BOARD AFTER MARKET

12. CHIP ON BOARD FRONT AND BACK

13. CHIP ON BOARD INTEGRAL LED

14. STRIP LIGHTING NOTICE WHITE CIRCUIT BOARDS

15. FOR EDISON BASE EVEN CANDELABRA

16. EVEN FOR BI-PIN BASES EVEN FOR FL LAMPS
 Even straight lamps

17. WHAT YOU NEED TO KNOW JUST TO BUY A LAMP!

18. WHITE LIGHT IS THE
ISSUE
RAINBOW REVEALS THE SPECTRUM
 Note, there is no such thing as a white ray of
sunshine. White is the sum of all colors.

19. WHITE DOESN’T EXIST! REMOTE PHOSPHOR
 Blue substrate + coating

20. Color temperature
Does it seem warm or cool?

21.  Kelvin temperature

22. Color issues
Color Temperature

23. Color rendition
A critical issue for interior lighting

24. Color rendition
Poor CRI will dull colors

25. POOR CRI HIGH CRI
 Less than 80 for interiors Look for 85 to 97

26. R VALUES YOU WANT R9
 CRI numbers didn’t seem to
say it all. New metrics had to
come into play.

27. MACADAM ELLIPSE COLOR CONSISTENCY

28. WHERE WILL YOU FIND IT WHERE YOU WON’T

29. EXPENSIVE BUT IS IT WORTH IT?
 Knock a whole in your
budget

30. The BAD
Light distribution of LEDs is different
How do you gauge light level?
Electrical requirements are different

31. THEY ARE NOT OMNI
DIRECTIONAL, CHIPS ARE FLAT

32. PENDANT WITH CHIP ON BOARD PENDANT WITH AFTER
MARKET
 Light may only go
downward.. You have to ask

33. FLAT CHIP TIGHT FILAMENT
 Not easy to get tighter than 8
degrees-
 Low voltage pin spots a thing
of the past?

34. LUMENS NOT WATTS
 32 watt FL lamp= 2800
lumens
 40 watt A15 = 415 lumens

35. LUMENS LUMENS
 What you used to know
60 A19 =865 lumens
75 A19 = 1150 lumens
100 A19 = 1710 lumens
150 A21= 2780 lumens

36. LUMENS CANDELAS
 Amount of light versus
amount of light in specific
direction

37. LEDS ARE LOW VOLTAGE AND
DC CURRENT
DRIVERS AND TRANSFORMERS
REQUIRED
 Generally 24 volt DC but you
have to check
 Where will they be located?

38. DRIVERS NEEDED BUT WHERE?

39. HEAT SINKS
LEDS DON’T CREATE HEAT OUT THE FRONT OF
THE FIXTURE, BUT THE BACK OF THE CIRCUIT
BOARD DOES GET WARM AND A HEAT SINK
MUST BE USED AND AIR HAS TO MOVE
AROUND THE FIXTURE

40. DIMMING GET THE INFO
 0-10 volt  ELV or even non-dim

41. DIMMING TO WARM NOW POSSIBLE

42. READ THE SPEC SHEET READ THE LABELS

43. Yes, there is plenty of good

44. ENERGY SAVINGS
LUMENS PER WATT KEEPS
INCREASING
 Lumens per watt is now over
100 in some cases
 Incandescent lamps
consume about 5 to 6 times
the wattage for same amount
of light!

45. THEY DO LAST A LONG TIME
CHIP ON BOARD LAST LONGER
THAN AFTER MARKET LAMPS
 COB = 50,000- 85,000 hours
 After Market= 10,000 t0
25,000 hours.. Read the
labels!

46. THEY WILL ALLOW FOR
SOPHISTICATED CONTROLS EVEN AFTERMARKET LAMPS DIM WARM
 Bi-level switching
 Dimming
 Remote control
 Tuneable white light

47. THEY HAVE LITTLE OR NO UV ART COLLECTIONS

48. LESS FADING OR
DAMAGE
EVEN LIGHTING LARGE
PLANES
 On fabrics, rugs

49. THEY CAN BE TINY AND HAVE BIG EFFECTS

50. THEY CAN CURVE THEY CAN BEND

51. THEY MAKE NEW FIXTURES
POSSIBLE
SLEEK DESIGNS ARE
POSSIBLE

52. NEW DESIGNS ARE
POSSIBLE
THAT REQUIRE NO MAINTENANCE

53. THEY CAN ADD COLOR INDOORS OR OUT

54. THEY CAN BE MINIMAL BUT OH SO FUNCTIONAL!

55. THEY CAN BE SLEEK
INCORPORATE INTO
ARCHITECTURAL SURFACES
 Require little depth and don’t
get too hot

56. THEY CAN BE CONTINOUS
LINES OF LIGHT UNLIKE FLUORESCENTS

57. THEY FIT IN SMALL SPACES WITHOUT DARK SPOTS

58. THEY CAN START IN COLD
WEATHER INSTANT ON!

59. THEY FIT IN SMALL SPACES ALLOW FOR SMALL FIXTURES

60. THEY LEAD US THEY SOOTHE US

61. THEY CAN ADD FUN THEY CAN ADD GLAMOUR

62. THEY ARE HERE TAKE OUR DOCENT TOUR
 LEDucation 10!

63. Thank you so much for attending!

64. This concludes The American Institute of Architects
Continuing Education Systems Course