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Bridgelux LED Tunable White LED Wall Wash Fixtures

Bridgelux LED Tunable White LED Wall Wash Fixtures

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Here are the wall wash fixtures I have built for my Masters project. I am doing a human factors experiment involving brightness perceptions and comfort in office environments. These LED strips are white tunable to either 3000K or 5000K and are designed to illuminate the entire wall from top to bottom. My hypothesis is that participants will perceive the 5000K setting as brighter, even when the luminous flux for each CCT is kept constant.

IMG_2636.jpg IMG_2656.jpg IMG_2652.jpg IMG_1337.jpg

Light Information

Light Information

Manufacturer:Bridgelux
Lamp
Lamp Type:Linear LED Panels
Fixture
Location:Troy, New York
Electrical
Voltage:0-10 Volts
Optical
Color Temperature:3000K to 5000K
Physical/Production
Factory Location:China (Final Assembly in USA)
Fabrication Date:March 2019
Application/Use:Masters Project Office Lighting Experiment

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Date added:Mar 02, 2019
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Date Time:2019:03:01 11:28:30
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streetlight98
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Mike McCann


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Mar 02, 2019 at 07:16 PM Author: streetlight98
I agree with you, people I talk to tend to describe bluer color temperatures as "bright white".

To resist is to piss in the wind, anyone who does will end up smelling.

xmaslightguy
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^homebuilt fixture


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Mar 03, 2019 at 12:26 AM Author: xmaslightguy
Should be an interesting experiment.

Must be a fairly good sized room with the number of 'fixtures' you have there.

Colored Fluorescent's such as F40T12 Red or  Green or Blue are awesome...

Powergroove
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Mar 03, 2019 at 09:49 AM Author: Powergroove
Even though the led may be rated for less lumens the perception is they are brighter because they are a directional point of source device.

Keep government out of the lighting industry.

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Mar 03, 2019 at 04:06 PM Author: Powergroove
Same goes with fluorescent. The higher the kelvin rating the brighter they are perceived. I did an experiment of my own. I put a pair of F72T12/D in a fixture then a pair of F72T12/SPX30. Asked my woman which was brighter and she said the daylight lamps were. I put one of each side by side and she said the spec deluxe lamp was too yellow.

Keep government out of the lighting industry.

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