LED lighting is up to 44% more efficient than 4-foot fluorescent tubes, according to a University ... recessed lighting systems and found that LED products were 18%–44% more efficient than ...

Fluorescent tubes come in a range of color temperatures too ... Viribright Lighting, a manufacturer of LED lighting products, has a good guide on how to read the label on existing tubes to understand ...

A light source consisting of a long glass tube containing mercury in a partial vacuum. Available in many lengths and several diameters, the tube is lined with a fluorescent phosphor. When the ...