Ask Randall
Randall Whitehead, IALD
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
Residential Lighting: What will you talk about at the Dallas Total Home & Gift Market?
Bill Rancic: My goal is to... read full story
Canning: When working on a collection, I have an awareness of what’s required by the market. My design brief would indicate... read full story
Residential Lighting: What's your take on retailing today?
Rick Segel: I think independents have the greatest opportunity... read full story
Solid-state lighting (SSL) represents a family of novel general lighting technologies that generate light by passing current... 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
