Customer Support

LED Customer Buying Guide

Thinking of making the switch to LED lighting? We can help. The following guide provides helpful resources and information to help you select the right LED bulb or linear LED lighting options for your business.

LED Basics

Where to begin: Review the following LED features to determine how your current lighting may differ from an LED.

Light Output and Lighting Efficacy Light Output and Lighting Efficacy
Lifetime Lifetime
Correlated Color Temperature (CCT) and Color Rendering Index (CRI) Correlated Color Temperature (CCT) and Color Rendering Index (CRI)

LED Lamps, Retrofit kits and Fixtures

With the basics in mind, now you can figure out the right type of LED technology for your business. There are a variety of interior LED retrofit options but we are focusing on replacements for linear fluorescent lighting and options for replacing inefficient lamps and bulbs.

For linear fluorescent lighting, retrofit options include TLEDs, retrofit kits and fixtures.  The various benefits associated with each technology type are listed below.

LED Tubes/LED Lamps/TLEDs

Tubular shaped LED Lamps are often referred to by many different names such as LED tubes, LED lamps or TLEDs. For our purposes, we’ll refer to tubular shaped LED lamps as TLEDs. TLEDs are designed to match the diameter, length and base of fluorescent tubes so that they can plug into the existing sockets of a fluorescent troffer fixture.5

Why choose this option? Why choose this option?
Additional Considerations Additional Considerations
LED Tube Types LED Tube Types

LED Retrofit kit/LED Replacement Kit/LED conversion kit

A retrofit kit allows for the existing linear fluorescent housing to remain in place but replaces the lamp, the ballast, wiring, diffusers in a prepackaged kit.5

Why choose this option? Why choose this option?
Additional Considerations Additional Considerations

LED Fixtures

An LED fixture replaces the entire fluorescent fixture including the housing.11 With this retrofit option you get the required electrical components, LED light sources, and optical elements that were designed specifically for operation with LED lighting.

Why choose this option? Why choose this option?
Additional Considerations Additional Considerations

LED Bulbs

Similar to Linear replacement options, there are also many options to choose from when it comes to selecting the right LED bulb for your fixture. 

How to select the right LED bulb shape How to select the right LED bulb shape

Lighting Controls

After you’ve selected the right lamp or fixture, you may want to add controls to your new LED Lighting.

Energy efficient lamps and fixtures are only one part of the process of reducing energy use. Lighting controls are devices and systems that regulate your lighting lamps or systems through various capabilities to ensure you get the most out of your LED lighting system.

Controls allow you to optimize comfort, aesthetic and energy savings by providing the right amount of light where and when it’s needed. Below are several examples of lighting control options and strategies available to customers.13

Lighting Control StrategiesDescription
Scheduling Automated lighting control based on time of day or user defined schedule.
Vacancy Sensing Sensors turn lights off when an area is unoccupied and must be manually turned on when occupants enter or use the space.
Occupancy Sensing Sensors turn lights on when an area is occupied and off when it is unoccupied.
Photocell Sensors allow lighting to seamlessly dim or switch to artificial lighting depending on the amount of daylight available.
Task Tuning Presetting light levels for specific tasks, spaces or needs.
Dimming Reducing the light output and energy consumption manually, by timers, or with daylight sensors.
High-End Trimming  Reducing the maximum light output of a new lighting system at the time of install or commissioning. 
Networked Lighting Controls A networked lighting control system utilizes a wireless or wired digital lighting control system equipped with both software and hardware components to automatically adjust light levels based on occupancy patterns, daylight, scheduling and various other energy management needs of the building.24
Luminaire Level Lighting Controls Lighting control systems with various sensors and controls embedded within the individual fixtures.

1California Lighting Technology Center, University of California, Davis, Retail Lighting. 2013 Title 24 Part 6, Dec. 2014, pp. 14.

2California Lighting Technology Center, University of California, Davis, Retail Lighting. 2013 Title 24 Part 6, Dec. 2014, pp. 15.

3“LED Basics.” Energy. Gov. www.energy.gov/eere/ssl/led-basics.

4California Lighting Technology Center, University of California, Davis, Retail Lighting. 2013 Title 24 Part 6, Dec. 2014, pp. 17.

5U.S. Dept. of Energy, LED Troffer Retrofit Lighting and Controls Best Practices, EE 1544, PNNL-SA-123952 , March 2017, pp. 3.

6U.S. Dept. of Energy, LED Troffer Retrofit Lighting and Controls Best Practices, EE 1544, PNNL-SA-123952 , March 2017, pp. 5.

7California Lighting Technology Center, University of California, Davis, Lighting Technology Overview. Nov. 2015, pp.16.

8U.S. Dept. of Energy, LED Troffer Retrofit Lighting and Controls Best Practice. EE-1544, PNNL-SA 123952 pp.2-3

9U.S. Dept. of Energy, LED Troffer Retrofit Lighting and Controls Best Practices. EE 1544, PNNL-SA-123952 , March 2017, pp. 4.

10California Lighting Technology Center, University of California, Davis, Lighting Technology Overview. Nov. 2015, pp.22.

11U.S. Dept. of Energy, LED Troffer Retrofit Lighting and Controls Best Practices. EE 1544, PNNL-SA-123952 , March 2017, pp. 2.

12U.S. Dept. of Energy, Caliper Exploratory Study: Recessed Troffer Lighting,PNNL-22348, 2013,pp.

13U.S. Dept. of Energy, LED Troffer Retrofit Lighting and Controls Best Practices. EE 1544, PNNL-SA-123952 , March 2017, pp. 8.

Energy Saving Tip

A programmable thermostat can help you save big on energy costs, adjusting the temperature when you're at work, at play, or asleep.

Break Ground, Not the Law

Always call 811 before digging in your yard to avoid hitting buried gas or electric lines. Not only is it the safe thing to do, but it's the law.

Xcel Energy MaritzCX

We'd welcome your feedback!

Thank you for visiting Xcel Energy. You have been selected to participate in a brief customer satisfaction survey to let us know how we can improve your experience.

The survey is designed to measure your entire experience, so please look for it at the conclusion of your visit

This survey is conducted by an independent company MaritzCX, on behalf of the site you are visiting.

Privacy Policy