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T5 and T5HO fluorescent high bay fixtures and other T5-based specialty lights are built around a linear fluorescent tube lamp.  Like other types of lamps, the number in the name of the lamp reflects its size.  The “T5” name reflects the diameter of the tube in eighths of an inch.  A T5 lamp is five-eighths of an inch (5/8”).  Similarly, a T8 fluorescent lamp is eight-eighths (or one inch) in diameter and a T12 fluorescent lamp is 12 eighths (or 1 Read more What Are T5 and T5HO High Bay Lights?

President Bush has signed into law an extension of the Energy Policy Act of 2005 that will continue to provide the $1.80 per square foot tax deduction for energy efficient commercial and industrial building upgrades through December 31, 2013. This five-year extension was passed by the Senate on October 1 by a vote of 74-25 and by the House on October 3 by a vote of 263-171 as part of the Emergency Economic Stabilization Act of 2008. The Energy Read more Energy Policy Act Tax Deductions Extended to 2013