Ask Randall

Randall Whitehead, IALD
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
LED lighting can be overwhelming for the average lighting shopper.
“In our showroom, we carry everything from LED pendants... read full story
Residential Lighting: Lightfair attendance has been up during a tough economy. Why is that?Jeff Portman: Lightfair has been... read full story
McCoy: My guide is the client. Is the interior modern? Is it Moroccan? I’m working on a house right now that takes... read full story
Residential Lighting: What overall home design directions are important right now?Andrea Sinkin: Definitely the introduction... read full story
Webinars
Sponsored by Access Lighting, Kichler Lighting, Kimberly LED Lighting, Auroralight and Antares Lighting.
The lighting marketplace is changing more rapidly today than at any... read full story
A question that many designers and consumers are asking is whether LED lighting is ready for general home use. In this seminar, we will discuss answers to that question by... read full story
In this seminar, we will discuss the rapid changes and innovations that are occurring in LED lighting, and the dramatic impact that LEDs are having in the retail and... read full story