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

December 05, 2011
I did my research but could not find any specific studies that compared the life of a lamp shade using a CFL to one using an incandescent source. I...
December 05, 2011
Yes, CFLs do contain mercury; it is an essential element of the bulb’s anatomy, without which it could not operate. The amount of mercury used in a...
December 05, 2011
We need to break this question down into two categories. The first would be manufacturers of CFLs that are dimmable and that screw into a standard...
December 05, 2011
Thank you for your full-bodied response to my March column, “Seeing Red About Green”— which was a counterpoint to a reader’s reaction to February’s “...
December 05, 2011
These days it means reflector luminaire manufacturer, but originally it meant reflector light microscopy. It is a fixture that is designed to project...
December 05, 2011
Using dimmable cold cathode lamps (known as CCFLs) is a good way to go. They have an average rated lamp life of 25,000 hours, as compared to CFLs at...
December 05, 2011
The short answer is that the rumors are true-ish. According to the United Kingdom’s Health Protection Agency (HPA), being too close to some energy-...
December 05, 2011
The higher a ceiling is, the more flexibility you have for a mounting height on the wall. Plus, placement depends on the sconce you choose and...
December 05, 2011
You’re right that under-cabinet LEDs are costly, but I believe that in 12 to 18 months we will be seeing LED versions that are comparable in price to...
December 05, 2011
Yes, halogen lamps are hotter than standard A-lamps. You can actually cook food with halogen lamps. Think of how much faster those Easy-Bake ovens...

recent articles

Residential Lighting: Please put solid-state lighting in perspective. Jim Brodrick: We’re in the midst of a lighting... read full story
Q: What are the three most significant developments in residential lighting during the past decade? A: LED technology, home... read full story
The Lightfair App Definitely download the Lightfair app. It has a new homepage look featuring a V3 design with icons and the... read full story
Q: What are the biggest differences between Canadian and American lighting markets? A: I’ve always looked on the North... read full story

Webinars

Sponsored by Fanimation and Pure Lighting/Edge Lighting.   Wednesday, June 10, 2-3 p.m. EDT Register for this free CEU webinar by clicking here. Webinar Overview:... 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