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Lighting Audit

14 Lighting Audit Questions Every Facility Manager Should Ask

How to prepare, analyze, claim rebates, and maximize ROI from lighting investments. A lighting audit is not a box-checking exercise. Done right, it becomes a roadmap to lower energy costs, safer spaces, better performance, and predictable payback. Done poorly, it turns into a missed opportunity with half-measures and underwhelming savings. If you manage a commercial, industrial, or institutional facility, these 14 lighting audit questions will help you run a lighting audit, ask the right things from vendors, and make decisions that actually move the needle.

Essential Lighting Audit Questions for Facility Managers

Asking the right lighting audit questions helps facility managers uncover hidden energy waste, improve occupant comfort, and extend the lifespan of lighting systems. A smart audit goes beyond fixture counts—it evaluates efficiency, maintenance costs, compliance, and real-world performance. By focusing on the right questions, facility managers can make data-driven decisions that reduce operating expenses, support sustainability goals, and ensure lighting systems meet both current needs and future demands.

1. What problems are we trying to solve beyond “high energy bills”?

Start with outcomes, not fixtures. Ask:

  • Are we dealing with uneven lighting, glare, or dark zones?
  • Your maintenance calls eating time and budget?
  • Safety incidents or compliance issues linked to poor visibility?
  • Are tenants or staff complaining about eye strain or fatigue?

Clear problem definition keeps the audit focused on performance and ROI, not just wattage swaps.

2. Do we have accurate baseline data for energy use and maintenance?

You cannot measure improvement without a baseline. Before the audit:

  • Gather 12 months of utility bills
  • Document lamp types, wattages, quantities, and hours of use
  • Track maintenance costs (lamp replacements, lift rentals, labor)

This data becomes the foundation for savings calculations, rebate approvals, and payback timelines.

3. Which spaces actually need a detailed lighting audit?

Not every area deserves the same level of attention. Prioritize:

  • High-use areas (warehouses, production floors, parking lots)
  • High-cost zones (high ceilings, hard-to-access fixtures)
  • Safety-critical areas (stairs, exits, loading docks)

A targeted audit prevents over-engineering and keeps budgets under control.

4. Are we measuring light levels with a proper photometric analysis?

Visual impressions are unreliable. Light meters are not. A professional audit should include:

  • Lux or foot-candle measurements by zone
  • Uniformity ratios, not just average light levels
  • Identification of glare, shadows, and spill light

Photometric analysis ensures lighting meets task requirements, safety standards, and code compliance, not just “looks brighter.”

5. Do current light levels align with actual task needs?

More light is not always better. Ask:

  • Are offices over-lit?
  • Aisles and racks evenly illuminated?
  • Are exterior areas bright where people move and dim where they do not?

Right-sizing light levels reduces energy use without compromising productivity or safety.

Download Faraday Free Lighting Audit Checklist for Facility Managers

6. What lighting standards or codes should we be benchmarking against?

Benchmarks matter. A strong audit references:

  • Applicable building codes
  • Industry-specific lighting recommendations
  • Safety and accessibility requirements

This avoids under-lighting risks and ensures upgrades hold up during inspections or insurance reviews.

7. Which fixtures are failing early or driving maintenance costs?

Maintenance is a hidden energy expense. Identify:

  • Fixtures with frequent failures
  • Lamps with short lifespans
  • Locations that require lifts or shutdowns for replacement

High-quality LED upgrades often pay for themselves faster through maintenance reduction alone.

8. Are controls being evaluated, or just fixtures?

Lighting controls are often the biggest missed opportunity. Ask if the audit includes:

  • Occupancy sensors
  • Daylight harvesting
  • Dimming capabilities
  • Time scheduling
  • Networked or smart controls readiness

Controls can cut energy use by 20–60%, even before fixture upgrades.

9. Which areas are ideal candidates for retrofits vs full replacements?

Not every fixture needs to be replaced. A smart audit distinguishes between:

  • Retrofit kits where housings are sound
  • Full replacements where optics, distribution, or safety are compromised

This hybrid approach often delivers the best cost-to-performance ratio.

10. What rebates, incentives, or utility programs apply to this project?

Rebates can make or break ROI. Your audit should identify:

Missing rebate details early can delay projects or reduce total savings.

11. Is the payback calculation realistic and transparent?

Payback math should be simple and defensible. Look for:

  • Energy savings based on actual hours of use
  • Maintenance savings clearly itemized
  • Rebates applied correctly
  • Conservative assumptions, not best-case scenarios

A trustworthy audit shows how the numbers were calculated, not just the final figure.

12. How will lighting performance be verified after installation?

Savings are only real if they are delivered. Ask:

  • Will post-installation light levels be measured?
  • Will controls be commissioned and tested?
  • Is there a walkthrough or sign-off process?

Verification protects your investment and ensures promised outcomes become reality.

13. What warranty, lifespan, and support should we expect?

Cheap fixtures cost more over time. Your audit should clarify:

  • Fixture and driver warranty terms
  • Expected lifespan based on operating conditions
  • Local support and replacement processes

Long-term reliability is just as important as upfront cost savings.

14. How does this lighting upgrade support long-term facility goals?

Think beyond the current project. Ask how lighting aligns with:

  • Sustainability targets
  • ESG reporting
  • Future building automation
  • EV charging, solar, or smart infrastructure plans

Lighting should be a strategic asset, not a one-off upgrade.

Turning Questions Into Measurable ROI

A strong lighting audit does three things:

  1. Identifies real problems, not just outdated fixtures
  2. Quantifies savings with defensible data
  3. Creates a clear path from audit to implementation

When facility managers ask better questions, they get better outcomes: lower operating costs, safer environments, and lighting systems that work for years, not months. If your audit does not confidently answer these lighting audit questions, it is time to demand a deeper, more strategic approach.


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Kiran

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Kiran

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