Ask Randall

Randall Whitehead, IALD

Randall Whitehead, IALD, is a professional lighting designer and author. His books include "Residential Lighting, A Practical Guide." Whitehead has worked on projects worldwide, appeared on the Discovery Channel, HGTV and CNN, and he is regular guest on Martha Stewart Living Radio. Visit his website www.randallwhitehead.com for more information on books, upcoming seminars and the latest lighting trends.

Recent Posts

June 12, 2012
There isn’t a hard-and-fast rule about when to use clear or frosted flame-tip lamps (B10 is the industry name for them). It depends on the type of...
May 18, 2012
You are right on all counts with incandescent light, but the same is not true with CFLs and LEDs. Neither of these sources gets warmer in color when...
May 18, 2012
Halogens are twice as hot as standard incandescent lamps. If a table lamp is UL-rated for 75W, it is referring to a standard household bulb. You can’...
April 12, 2012
That depends on what formula is used. Some use 24 hours a day, seven days a week, while others use 12 hours a day or even six hours a day (based on...
April 12, 2012
LED lamps and components will continue to improve in efficacy, CRI and output over time, long before our original purchases have burned out. If...
April 12, 2012
LEDs do produce heat. That is why there is so much metal in the lamps and fixtures to act as heat sinks. The main difference is that they do not...
April 12, 2012
What is the room that you are lighting being used for? How is the furniture laid out? Instead of just doing a grid of recessed fixtures, my...
March 19, 2012
Yes, you do have a bit of the situation there. But fear not, there is an answer at hand … actually, four answers: 1. Look for a linear fixture that...
March 19, 2012
First off, I’ll provide a guideline: The bottom of the fixture should be 32 to 36 inches above the tabletop. Now that I’ve told you that rule, I’m...
February 14, 2012
You and I are on the same page about higher CRI and warmer color tones. I have ranted about this issue in a few of my other columns, saying that...

recent articles

Author and founder of Retail Minded Nicole Leinbach Reyhle has given talks on everything “retail.” From marketing to... read full story
The American Lighting Assn. (ALA) BiNational Advertising and PR Program recently announced the launch of a new campaign on... read full story
Residential Lighting: How would you describe the state of retailing? Bob Phibbs: In the old days, the manufacturer would... read full story
Of all the finds she posted, these three resonated the most on our award-winning social media pages.  Ben Wirth O’Tool... read full story

Webinars

Wednesday, June 8 at 2 p.m. EDT Register for this free CEU webinar here. Webinar Overview:Learning units:AIA/CES LU (HSW) 1.0 Learning UnitIDCEC (IIDA/ASID/IDC/IDS) 0.1... read full story
Sponsored by Emerson and Kuzco Lighting. This free CEU webinar has already taken place, but you can still watch it on demand by clicking here. Webinar Overview:Learning units... read full story
Sponsored by Bock Lighting, CSL, Fanimation, Pure Lighting/Edge Lighting and USA LED Lighting Solutions.   Wednesday, June 10, 2-3 p.m. EDT This free CEU webinar has... read full story
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