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LED Troffer Retrofit Lighting and Controls: Best Practices

COURSE NO: E01-011
LED Troffer Retrofit Lighting and Controls: Best Practices
Course Highlights

This online engineering PDH course provides basic information on LED troffer retrofit lighting and controls best practices.


Lighting use constitutes about 20% of the total source electricity consumption in commercial buildings. Most of the lighting in U.S. commercial buildings is provided by fluorescent troffer ceiling fixtures. There are currently over 350 million installed troffers using more than 65 million kWh (the annual energy usage of 6 million U.S. homes).


Retrofitting these fluorescent troffers to light-emitting diode (LED) sources offers the potential for enormous energy savings. As of 2015, only 5% of the troffers in use had LED light sources. At a project level, retrofitting or replacing fluorescent troffers with LEDs can result in energy savings of 20% to 60% and help agencies meet energy-efficiency goals.


This 1 PDH online course is applicable to environmental engineers who are interested in gaining knowledge about LED retrofit kits, TLEDs, and lighting controls best practices.
Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Familiarizing with the different options of retrofitting existing fluorescent troffer fixtures with LEDs
  • Familiarizing with the different types of tubular LEDs and their characteristics
  • Gaining a general overview of the features of retrofit kits including installation time requirements, efficacy, and controls
  • Learning about the factors to consider when installing new luminaires including existing condition of luminaires, equipment purchase costs, energy savings, installation labor costs, ceiling plenum access, light levels
  • Understanding the importance of color characteristics of the light from the troffer and the measurements used to describe lighting
  • Learning about the different types of lighting controls and their characteristics
Course Document
In this professional engineering CEU course, you need to review the course document titled, " LED Troffer Retrofit Lighting and Controls: Best Practices”, which is based on the US department of Energy document “LED Troffer Retrofit Lighting and Controls: Best Practices”, dated March 2017.
To view, print and study the course document, please click on the following link(s):
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of ten (10) questions to earn 1 PDH credit. The quiz will be based on the entire document.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: