color temperature

Stone wall and iron bookshelf with backlighting
This elegant stone wall is dramatically illuminated, using a wall grazer which projects a light straight down the very narrow beam spread. Photo: Randall Whitehead

It’s a Wash: Techniques for Evenly Illuminating Vertical Surfaces

Washing walls with light has become a whole lot easier. Before LEDs came along, you were pretty much stuck with track lights, using flood bulbs or recessed fixtures with reflectors and spread lenses…
photo wall illuminated
2700K linear LED lighting (made by Aion LED, www.aionled.com), is housed in an aluminum extrusion at the front edge of the shelving, evenly illuminates the collection of photographs. Photography: Dennis Anderson

LEDs in 2018

Yes, I’m totally obsessed with LEDs. Admittedly, we got off to a rough start in the beginning. They got introduced onto the market a little too early. They didn’t have much lumen output, the color…

Color Temperature vs. Color Rendering Index

Q: Just as I understand the concept of color temperature (Kelvin), now CRI is being bandied about as LEDs come into the market. What is it exactly? A: I am right there with you. From the beginning…

Best Color Temperature for Ambient Lighting

Q: How important is color temperature in ambient lighting? Should this be a concern if you are using fluorescents or LEDs for your ambient lighting? A: Frankly, I think color temperature is…
Bedroom with furniture from Hooker Furniture
In the bedroom, color temperature makes all the difference. Photo: Hooker Furniture

The Right Lighting Color Temperature

It's tough getting the right color temperature for a space, but luckily, the Lighting Doctor, Randall Whitehead, is here to help! See how Whitehead's advice helped this reader better understand the…

Color Temperature for CFLs, LEDs

Q: Color temperatures are very important as we transition from incandescent bulbs to CFLs/LEDs. I am finding more problems with CFL and LED light sources than what is being portrayed. True color…
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