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Field-tested thinking on lighting at scale.

Technical guides, field notes, and source media from the people who design, install, monitor, and maintain commercial lighting.

Field Notes · Technical Guides

Useful answers for the work behind the light.

Start with portfolio maintenance, pole condition, field partners, LED upgrades, photometric plans, dimming, and the everyday decisions that keep commercial properties working.

SOURCE LIBRARY / WLS

Village One Plaza parking lot after a commercial LED lighting upgrade
FIELD NOTE · JULY 22, 2026
Field Note

How to Reduce Lighting Maintenance Costs Across Multiple Properties

Managing exterior lighting at one property is relatively straightforward. Managing lighting across dozens or hundreds of locations creates a much larger operational challenge.

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Technical illustration of commercial lighting pole testing
PERSPECTIVE · JANUARY 28, 2026
Perspective

Why Knowing Pole Condition Reduced Risk, Not Liability

For years, many property owners and managers avoided testing site lighting poles under the belief that less information meant less liability. Insurance data, claim outcomes, and real-world loss scenarios prove the opposite.

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Festival at Sawmill commercial property after lighting improvements
FIELD NOTE · DECEMBER 18, 2025
Field Note

Inside the WLS Field Partners Program

The WLS Field Partner Program connects vetted electrical professionals across the U.S. to ensure consistent, high-quality lighting maintenance and repair services for commercial property owners.

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Before and after view of a shopping center LED lighting upgrade
TECHNICAL GUIDE
Technical Guide

What Is a Commercial LED Lighting Upgrade?

What is a commercial lighting upgrade? What is a retrofit? Learn how LED lighting can improve efficiency and lower electricity costs.

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Photometric lighting design for a new construction project
TECHNICAL GUIDE
Technical Guide

The Importance of Photometric Plans for Your LED Lighting Upgrade

The importance of photometric plans for your LED lighting project and four reasons to ensure your project includes photometric plans.

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netLiNK illustration showing connected commercial site lighting
TECHNICAL GUIDE
Technical Guide

0-10V Dimming vs Step Dimming: Complete Comparison

Dimming your lighting gives you the benefits of energy savings, lower electric costs, and extends the life of your lighting fixtures.

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Monthly Maintenance Program process graphic
FIELD GUIDE
Field Guide

Commercial Lighting Maintenance Advice & Tips

Practical advice for maintaining commercial lighting, including checking breakers, labeling panels, cleaning lenses, and establishing disaster preparedness plans.

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Diagrams · System Media

See the system, not just the fixture.

The original WLS program graphics make the operating model easier to understand: what gets reported, what gets controlled, and how the work moves from signal to service.

Watch · Download

Keep the useful stuff close.

Videos and reference documents from the WLS library, gathered in one place for property teams, project partners, and field crews.

Have a portfolio question, a new construction set, or a site that needs a closer look? Start with WLS.

Talk to WLS