21 articles Retrofits

Step-by-Step Guide: LED Troffer Replacement

LED Troffer Selection Guide

Fluorescent troffers are  the single most common fixture type in commercial spaces in North America. Offices, retail, education, medical centers, laboratories, retirement homes – the list goes on – most utilize troffers in their facilities. The vast majority of currently installed troffers have fluorescent tube (T5, T8, T12) light sources. Today, the LED alternative to…

LED Lighting and Power Quality: The High Cost of Ignoring Power Quality Issues When Switching to LED

  The effects of power quality on LED lighting performance generally receive little attention prior to installation for most commercial applications. Power quality issues such as dips, harmonics, interruptions, transients and surges can result in expensive, early replacement of damaged or failed LED lighting equipment. While facility managers involved with smaller commercial projects may be…

A Guide to Beam Metrics for Comparing LED to Halogen Directional Lamps

Directional Lighting on Gallery

LED light is inherently directional. Most traditional light sources – incandescent, halogen, compact fluorescent and HID – emit light in all directions. For these light sources to have specific directional characteristics, the lamp is made with a reflector and sometimes a lens to modify the illumination so it becomes more focused, or directional. For example,…

How To Evaluate Cost-Effectiveness of LED T8 Lamp Retrofits for Troffers

Life is more complicated these days for facility managers charged with, among many other tasks, maintaining an effective building lighting system for the occupants while trying to reduce, or at least stabilize, energy costs. While there is a wide range of lighting tasks and types of light fixtures in commercial and institutional buildings, by far…

Efficacy Improvement of LED Recessed Downlight Modules Slows But Benefits Remain

Updated: May 2018.   Recessed downlights are one of the most common light fixtures found in both commercial and residential applications. In individual offices, entry lobbies, reception areas, hallways, restaurants, retail merchandising, residential kitchens, family rooms and many other spaces, the clean, ceiling integrated look of recessed downlights makes it a fixture of choice. Traditionally,…

LED Downlight Options for Small Commercial & Residential Applications

The number of recessed downlights in small commercial and residential environments often exceeds all other types of light fixtures in the building. Tucked neatly inside the ceiling, these fixtures manage to be both an unobtrusive and an effective source of illumination for many types of spaces. The traditional light source for these downlights has been…

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