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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 ofhandling, 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.
LEDs Demystified for Interior Designers
Speaker: Diana Mesh, IES, DLF of HTA Lighting.
Learning objectives “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 Learning points1. Basic Lighting terms for LEDs explained2. LED color explained in detail3. How LEDs work and why this affects your plans4. How to understand light levels easily5. LED fixture requirements explained
The Good, the bad and the Ugly-you have been warned!
The Ugly, The Bad and the Good !-Let’s take this apart piece by piece
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
Let’s talk about both:
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
Wall sconce
CHIP ON BOARD AFTER MARKET
Wall sconce
CHIP ON BOARD AFTER MARKET
Wall sconce
CHIP ON BOARD FRONT AND BACK
downlight
CHIP ON BOARD INTEGRAL LED
Chip on Board
STRIP LIGHTING NOTICE WHITE CIRCUIT BOARDS
After market lamps
FOR EDISON BASE EVEN CANDELABRA
After market lamps
EVEN FOR BI-PIN BASES EVEN FOR FL LAMPS Even straight lamps
Lamp packaging
WHAT YOU NEED TO KNOW JUST TO BUY A LAMP!
How leds make light
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.
How LEDs make light
WHITE DOESN’T EXIST! REMOTE PHOSPHOR
Blue substrate + coating
Color temperatureDoes it seem warm or cool?
Color temperature Kelvin temperature
Color issuesColor Temperature
Color renditionA critical issue for interior lighting
Color renditionPoor CRI will dull colors
Color Rendition
POOR CRI HIGH CRI Less than 80 for interiors Look for 85 to 97
Color rendition
R VALUES YOU WANT R9 CRI numbers didn’t seem
to say it all. New metrics had to come into play.
Color Rendition
MACADAM ELLIPSE COLOR CONSISTENCY
Color renditionWHERE WILL YOU FIND IT WHERE YOU WON’T
Ugly truth
EXPENSIVE BUT IS IT WORTH IT?
Knock a whole in your budget
The BAD
Light distribution of LEDs is different
How do you gauge light level?
Electrical requirements are different
Light distributionTHEY ARE NOT OMNI DIRECTIONAL, CHIPS ARE FLAT
Not omni-directional
PENDANT WITH CHIP ON BOARD PENDANT WITH AFTER MARKET Light may only go
downward.. You have to ask
Pin spotting is hard
FLAT CHIP TIGHT FILAMENT Not easy to get tighter
than 8 degrees- Low voltage pin spots a
thing of the past?
Light levels
LUMENS NOT WATTS 32 watt FL lamp= 2800
lumens
40 watt A15 = 415 lumens
Light levels
LUMENS LUMENS What you used to know
60 A19 =865 lumens75 A19 = 1150 lumens100 A19 = 1710 lumens150 A21= 2780 lumens
Light levels
LUMENS CANDELAS Amount of light versus
amount of light in specific direction
Electrical requirments
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?
Electrical requirements
DRIVERS NEEDED BUT WHERE?
Electrical requirements
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
Electrical requirment
DIMMING GET THE INFO 0-10 volt ELV or even non-dim
DIMMING TO WARM NOW POSSIBLE
Electrical requirements
READ THE SPEC SHEET READ THE LABELS
THE GOODYes, there is plenty of good
The Good
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!
The Good
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!
The GOODTHEY WILL ALLOW FOR SOPHISTICATED CONTROLS EVEN AFTERMARKET LAMPS DIM WARM
Bi-level switching Dimming Remote control Tuneable white light
The Good
THEY HAVE LITTLE OR NO UV ART COLLECTIONS
The GoodLESS FADING OR DAMAGE EVEN LIGHTING LARGE PLANES
On fabrics, rugs
THEY CAN BE TINY AND HAVE BIG EFFECTS
The Good
THEY CAN CURVE THEY CAN BEND
The Good
THEY MAKE NEW FIXTURES POSSIBLE SLEEK DESIGNS ARE POSSIBLE
The Good
NEW DESIGNS ARE POSSIBLE THAT REQUIRE NO MAINTENANCE
The Good
THEY CAN ADD COLOR INDOORS OR OUT
The Good
THEY CAN BE MINIMAL BUT OH SO FUNCTIONAL!
The Good
THEY CAN BE SLEEK INCORPORATE INTO ARCHITECTURAL SURFACES
Require little depth and don’t get too hot
THEY CAN BE CONTINOUS LINES OF LIGHT UNLIKE FLUORESCENTS
The Good
THEY FIT IN SMALL SPACES WITHOUT DARK SPOTS
The Good
THEY CAN START IN COLD WEATHER INSTANT ON!
THEY FIT IN SMALL SPACES ALLOW FOR SMALL FIXTURES
THEY LEAD US THEY SOOTHE US
THEY CAN ADD FUN THEY CAN ADD GLAMOUR
The Good
THEY ARE HERE TAKE OUR DOCENT TOUR
LEDucation 10!
YOU ARE DEMYSTIFIED !Thank you so much for attending!
This concludes The American Institute of ArchitectsContinuing Education Systems Course