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

May 10, 2016
Providing light in a room with low ceilings is a challenge. Decorative sconces should be mounted between 5 feet 6 inches and 6 feet on center above...
March 29, 2016
You are still missing task light and accent light. You probably need some decorative floor and table lamps as well, which can also be used for task...
March 29, 2016
Super-shallow recessed fixtures can have a high glare factor. You might consider installing box beams to give you the room for recessed fixtures...
March 29, 2016
Yes, exactly. An incandescent bulb at full brightness has a color temperature of 2700K. Additionally, incandescent bulbs also get warmer in color as...
March 29, 2016
There is still inventory out there for higher-wattage incandescents, but I hope people will use LED sources, which use less power, create less heat...
February 29, 2016
LEDs do very well in cold and freezing temperatures. They are used throughout the United States and other countries for roadway and parking lot...
February 29, 2016
I would say that lumen output is a measurement of the illumination a bulb produces. The wattage is the amount of energy it consumes to produce that...
February 29, 2016
CSA (Canadian Standards Association) is the UL of Canada and just as stringent. They are good to go for installations in the United States.
February 29, 2016
People are always putting high-wattage bulbs in their exterior decorative fixtures. They think it provides more light, but it just produces more...
February 29, 2016
I don’t know why it was not a part of the lighting lexicon earlier, but my guess is that because all incandescents were 100 CRI and all fluorescents...

recent articles

Instagram Stories provides an engaging medium to post visual content temporarily to your Instagram account without clogging... read full story
As soon as the new year hits, market season is upon us, and retailers from across the country will gather at shows like... read full story
Residential Lighting: What is the Engineering Research Center (ERC)? Bob Karlicek: ERC is a National Science Foundation (NSF... read full story
On the weekend of Sept. 24, about 20 members of the lighting industry gathered in the Windy City for an event dubbed “... read full story

Webinars

Wednesday, December 7, 2016 Sponsored by Legrand, Lightovation and Tresco Lighting. Register for this webinar here: https://event.webcasts.com/starthere.jsp?ei=1118655... read full story
This webinar has already taken place, but you can register and watch in on demand here. Sponsored by Legrand. Webinar Overview:Learning units:AIA/CES LU (HSW) 1.0... read full story
This webinar has already taken place, but you can still watch it on demand by registering here. Sponsored by Emerson and Legrand. Webinar Overview: Learning units:AIA/... read full story
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