Ask Randall

Randall Whitehead lighting designer
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

July 06, 2012
I like to come in once a furniture layout is completed and the list of finishes has been selected. It is impossible to do a quality lighting design...
July 06, 2012
The first situation that came to mind is trying to screw in light bulbs while standing on a donkey. The second most challenging situation is when the...
July 06, 2012
You need to become familiar and comfortable with new alternative light sources and light fixtures so that you can make educated decisions on how they...
June 12, 2012
There are a number of factors that affect lamp life. First off, you are right about “average rated lamp life.” This means that half the lamps burn...
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...

recent articles

As one of the Featured Speakers slated for the 2015 American Lighting Assn. (ALA) Conference, Digital Media Executive ... read full story
From Instagram and iPads to old-fashioned beards and “artisanal” anything, Millennials or Gen Yers as they’re sometimes... read full story
Residential Lighting: Tell us about your new book, “Retail Truths.” Chip Averwater: The book discusses 427 lessons about... read full story
Colonial Lighting, Sugar Hill, GA Walk in Colonial Lighting’s doors, and you will not be disappointed. “There are lots of... read full story

Webinars

Sponsored by CSL, Fanimation, Pure Lighting/Edge Lighting and USA LED Lighting Solutions.   Wednesday, June 10, 2-3 p.m. EDT Register for this free CEU webinar by... read full story
Sponsored by Emerson, Ferguson and Pure Lighting/Edge Lighting. This free CEU webinar has already taken place, but you can watch the archived presentation on-demand by... read full story
Sponsored by Pure Lighting/Edge Lighting and Spotlite-USA.   This live webinar has already taken place, but you can still view the presentation on demand by clicking... read full story