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Energy Efficiency News and Lighting Retrofit Success Stories

Benefits of T5 HO High Bays

For far too long, the standard for lighting warehouses, industrial facilities, manufacturing facilities and other high ceiling height applications has been the 400-Watt Metal Halide fixture. Advances in ballast technology and the improvements of the T5 High Output (T5 HO) Linear Fluorescent lamp have led to many new light fixtures that are targeted specifically to replace old HID high bays. The following article details the many benefits that the T5HO high bay fixture offers over traditional 400 Watt Metal Halide high bays.  These include energy efficiency, improv … Continue reading

March 17, 2010 by Ray De Varona.

T5HO Warehouse Lighting Application Guide

The vast majority of existing warehouse space in the US is lit with inefficient high intensity discharge or magnetically ballasted T12 fluorescent light fixtures.  Unfortunately, lighting is one of the few areas that is often overlooked when investigating cost reduction opportunities.  Owners and managers blindly budget tens to hundreds of thousands of dollars for utility bills without realizing that switching to more energy efficient warehouse lighting can provide a tremendous opportunity to reduce energy demand and therefore cut utility costs.  Many believe that the on … Continue reading

March 5, 2010 by Ray De Varona.

What Are T5 and T5HO High Bay Lights?

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 1-1/2 inches) in diameter.  One of the features that make a T5 bulb and T5-based high bay light fixtures more efficient is the f … Continue reading

November 18, 2009 by Ray De Varona.