Are there efficient alternatives to halogen track lighting?

— Melissa Burlington, VT

Answered by David Bergman on August 2, 2011

What is the greenest dimming light bulb?

— Doug Lanning Phoenix, AZ

Answered by David Bergman on January 25, 2011

How do I dispose of broken CFL bulbs?

— E Newcomer Shrewsbury, PA

Answered by Hugo Lopez on November 10, 2010

How energy efficient are "Xenon" halogen bulbs in light fixtures?

— Sherry Logan, UT

Answered by David Bergman on September 7, 2010