Commercial & Industrial Electrical
Commercial LED Retrofits & Lighting Controls
Lighting is often the easiest commercial energy win, and retrofits increasingly bundle controls required by energy codes.
Updated 2026-10-15
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For linear fluorescent fixtures:
- Type A: works with existing ballast — fastest, but ballast remains a failure point
- Type B: ballast bypass — requires rewiring and labeling
- Type C: remote driver — highest efficiency, more labor
- Retrofit kits or new fixtures — best performance and longevity
Controls and code
Energy codes based on ASHRAE 90.1 and the IECC commonly require occupancy sensing, automatic shutoff, and daylight-responsive controls when lighting is substantially altered. Factor controls into the scope early.
Rebates and phasing
Many utilities offer prescriptive or custom rebates for LED retrofits and controls, often with pre-approval requirements. Phase work after hours or by zone to keep operations running.
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Frequently asked questions
What payback should we expect?
High-hour facilities like warehouses and retail often see paybacks within a few years, faster with rebates and controls.
Do retrofits trigger code upgrades?
Substantial lighting alterations can trigger energy-code control requirements. Your contractor or engineer will confirm thresholds.
Can we keep existing fixtures?
Retrofit kits can reuse housings in good condition, reducing waste and labor.
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This guide is general information, not engineering or legal advice. Electrical codes are adopted and amended locally — consult a licensed electrician and your local building department for your project.