Specialty and Architectural Lighting — Retrofits

With the cost of employing people orders of magnitude more expensive than the cost of operating a lighting system, it is important to strike the right balance between energy efficient lighting and the productivity of employees. It is no secret that light affects people in a multitude of ways. Some...

With a variety of lighting applications and lamp types, schools have many opportunities to both improve the quality of the lighting in their facilities and reduce operating costs. In addition to higher efficiency traditional lamps and better controls, LED lighting retrofit opportunities have reached a point both in the maturity...

Since the early 1990s, governments around the world have been increasingly concerned about the types of lighting citizens use in their homes and businesses. Large regulatory bodies, from the US government to the European Union, have been eliminating common inefficient forms of lighting in an effort to reduce energy usage....

If you've been to a hardware store recently to replace a light bulb, you know that this simple act has grown exponentially more complex in the past decade. With 100 watt, 75 watt, and 60 watt incandescent bulbs no longer being available in the US, the push is towards CFL...

When it comes to saving energy, OFF always wins. Lighting is no exception. At work, when you head to a meeting in a conference room that is used maybe three hours a day, are the lights already on even if you are the first to arrive, or, do they automatically...

We've written here before about one of the toughest problems for manufacturers of LED replacement lamps: achieving light intensity comparable to halogen in the MR16 form factor - particularly for narrow beam distribution. The initial blog post was written in 2014, then updated in late 2016. The update concluded by...

The effects of power quality on LED lighting performance generally receive little attention prior to installation for most commercial building 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...

The Lighting Research Center (LRC) at Rensselaer Polytechnic Institute has conducted a field research project evaluating installation issues and performance of a high bay retrofit where the existing metal halide bulbs have been changed to LED. High bay fixtures that use metal halide lamps in warehouses, shops, sports facilities and...

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...

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...

One look at the LED T8 retrofit lamp and installation options can quickly make you want to run for cover - or give up and live with fluorescent. The later approach, while not as forward-looking as LED, makes some sense especially if you are comparing the 30,000 to 40,000 hour...

Recessed downlights are a common lighting fixture found in most commercial and residential buildings. Lobbies, hallways and conference rooms often take advantage of the clean ceiling look of a recessed downlight to provide ambient or accent lighting in these spaces. In homes, kitchens are the most common location where recessed...

Municipalities, utility companies, and other establishments offer a variety of rebate and savings programs to encourage individuals and businesses to replace old, inefficient lighting with new, energy saving products. Principally, these incentives are offered to support energy efficiency and the use of renewable energy sources to lessen pollution, overall energy...

Facility managers faced with a lamp replacement project may want to consider the LED option but worry about the reliability of the technology, higher initial costs and a predictable return on investment. Bosses may require convincing that now is the right time to adopt LED lighting for their facility. While...

Warehouses using rack storage systems present unique lighting design challenges particularly for retrofits intended to improve the lighting scheme. The layout of most product storage warehouses comprises a shipping and receiving area (may be the same or separate areas), a low, open storage area for bulky items and a high...