Here is an example of a typical  indoor office upgrade


Replacing outdated 40- and 34-watt T-12 fluorescent lamps with more energy efficient T-8 lamps and electronic ballasts can bring substantial savings; in some cases up to 50% of total lighting cost.

A typical office setting consisting of 2′ by 4′ fluorescent fixtures with standard magnetic ballasts and standard T-12 lamps, upgraded to 4 lamp fixture electronic ballasts and new T-8 lamps, potentially saves $33.00 per fixture annually in energy alone. In addition, this new ballast comes with a one-year warranty and virtually no maintenance costs.

Standard metal halide lighting, most commonly used in high-ceiling accommodations, is being revolutionized by new Pulse-Start Metal Halide technology. Pulse-start systems have the highest maintained lumens in the industry and faster warm-up and restart times. This upgrade will save significant energy and provide brighter, better lighting for your workplace.

An existing high-ceiling lighting system consisting of a 400-watt High Pressure Sodium Lamp can be upgraded to a 350-watt Pulse-Start Metal Halide Lamp and conserve energy by 89 watts for a potential annual saving of $57.85 per fixture.


Dunn Electric Service of Clarksville, TN was founded in 1993 and is locally-owned and operated. We have always operated by the highest standards of customer service which is evident in our Dunn Electrical Service reviews. You will be satisfied with our work. Guaranteed. Voted Best of Clarksville. Contact Dunn Electrical Service to find the best electrician in Clarksville, TN and surrounding areas.