Dave Burtner has written 122 articles

Dave has been active in the lighting industry since 1994. Formerly a member of the Illuminating Engineering Society of North America and certified by the National Council On Qualifications for Lighting Professionals, Dave now writes blog posts, lighting tips and provides lighting product assistance for the Topbulb website.

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…

T5HO Fluorescent Update: Still A Strong Competitor for LED T5

While all the buzz these days is about LED, some traditional light sources still command center stage – T5HO fluorescent is one of them. T5’s were developed as an improved alternative to T8 fluorescent for certain applications. T5 tubes have a smaller diameter – 5/8” compared to 1” for T8. T5’s also use a different base…

What to Consider When Choosing an Electronic Fluorescent Ballast

How to Select an Electronic Fluorescent Ballast

Fluorescent lighting is a system that relies on the compatibility between the lamp(s) and ballast for reliable lamp starting, desired illumination level, energy efficiency and achieving rated lamp life. The ballast controls the voltage and current applied to the lamp(s). Beyond these basics, ballasts also have many additional characteristics that need to be considered so…

New T8 Fluorescent Lamp Regulations Take Effect January 2018

The Energy Policy Act of 1992 gave the U.S. Department of Energy (DOE) authority to establish energy efficiency rules governing general service fluorescent lighting. In 2012, the DOE standards effectively eliminated most T12 fluorescent lamps and 700 series, low color rendering (CRI below 80) T8 lamps. The DOE rule-making affected the manufacturers initially – distributors…

LED Dimming: How to Ensure Smooth and Effective Light Output Control

Many LED lamps and fixtures on the market today include a dimming capability. While certainly a beneficial feature, often a necessary one, dimming LED lamps can be an adventure unless some basic steps are taken to ensure compatibility between the LED lamp and dimming control. In the world of tungsten filament lighting (incandescent / halogen)…

Efficacy Improvement of Commercial Grade LED Recessed Downlights Slows But Benefits Remain

recessed downlights in commercial building with escalator

The rate of growth in LED lighting technology can easily be overwhelming. Almost as soon as the “ink” cries on the specification sheets for a line of LED fixtures, the next generation is only a matter of months away. It may take only six months for manufacturers to offer fixtures with a 10% improved efficacy…