Illinois’ Fluorescent Lamp Legislation & LED Lighting: What You Need to Know in 2026

In August 2024, Illinois became one of the leading U.S. states enacting a statewide ban on most mercury-containing fluorescent lamps through the Clean Lighting Act (Public Act 103-0799). This law represents a major shift toward safer, more energy-efficient LED lighting across residential, commercial, and industrial settings.

Key Dates and Phased Implementation

• January 1, 2026: Retailers and distributors in Illinois can no longer sell or offer for sale screw-base or bayonet-base compact fluorescent lamps (CFLs). This change is now in effect.
• January 1, 2027: The ban expands to include pin-base CFLs and linear fluorescent lamps (the T5, T8, T10, T12 tubes commonly used in offices, schools, warehouses, and retail spaces).
• Important Clarifications: The law prohibits sale and distribution, not use — existing fluorescent bulbs and fixtures may continue operating until they burn out. Certain lamp types used in specialized applications (especially those where LEDs are not yet viable) are exempt from the ban.

For more detailed information on the legislation, visit the Illinois Policy website.

Environmental and Economic Impacts

The transition from fluorescent to LED lighting is expected to yield substantial environmental and economic benefits:​

• Energy Savings: LEDs consume approximately half the energy of fluorescent lamps, leading to significant reductions in energy and operating costs.​
• Cost Savings: Illinois consumers are projected to save over $1.5 billion on utility bills by 2050.
• Mercury Reduction: The ban aims to eliminate 419 pounds of mercury pollution by 2050, addressing concerns over improper disposal of fluorescent lamps.

Imperial Lighting technicians used to work on fluorescent lighting fixtures, but now those are being phased out in favor of LED lighting.

Is your building compliant?

If you currently have fluorescent lighting in your facility, now is the perfect time to consider an LED lighting upgrade. The experts at Imperial Lighting can audit your space and provide recommendations on how to most efficiently upgrade to LED lighting. They can also help incorporate additional project savings through local utility rebates and lighting controls.

Looking Ahead

The Clean Lighting Act represents a significant step toward a more sustainable and energy-efficient future for Illinois. Companies and facilities that adapt to these changes by embracing LED technologies and promoting responsible disposal practices will not only comply with the new regulatory standards, but also position themselves as leaders in sustainable business practices. At the same time, you will be able to lower your energy costs by installing a more efficient lighting system.

For more detailed information on the legislation and its implications, and to schedule a free audit for an LED lighting upgrade, contact us today.