Photometric Testing

WHAT IS PHOTOMETRIC TESTING

Photometric Testing Made Clear

Photometric testing is a field-based process used to measure actual light levels in a completed space. Using calibrated light meters, we collect on-site readings to confirm that installed lighting systems meet energy code requirements and safety expectations. Rather than relying on lighting calculations, this testing verifies performance after installation.

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  Support Code Compliance & Closeout

  Photometric testing services are commonly used to support IECC or Local Ordinance Compliance, obtain inspection approvals, resolve punchlists, and document project closeout. In some jurisdictions, measured lighting data is required to demonstrate compliance with regulations.

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  Confirm Lighting Is Appropriate for Space Use

  Different spaces have different lighting needs. Photometric testing verifies that offices, corridors, classrooms, restrooms, retail areas, and exterior walkways receive appropriate illumination for visibility, safety, and usability.

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  Verify That Installed Lighting Matches Design Intent

  Construction changes, fixture substitutions, spacing adjustments, or field conditions can affect light distribution. Photometric testing confirms whether the installed system performs as intended in the lighting design.

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  Validate Compliance with IECC & Local Amendments

  Some jurisdictions mandate measured illumination levels or documentation confirming that final lighting installations comply with code thresholds or Lighting Power Density (LPD) limits. Photometric survey info serves as objective evidence of compliance.

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  Provide Objective Field Verification

  Photometric testing is not a redesign or critique of the lighting plan. It is a verification step that bridges the gap between drawings and field conditions, giving owners, architects, engineers, and contractors confidence in lighting performance before inspection, turnover, or occupancy.

WHEN IT IS NEEDED

When Photometric Testing Is Required

Photometric testing is typically performed when projects must verify lighting performance for code compliance, safety, and project closeout.

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  Code & Local Lighting Compliance

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  Post-Construction Lighting Verification

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  Turnover & Commissioning Documentation

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  Safety, Egress, & Exterior Lighting

TESTING SCOPE

What We Measure During Photometric Testing

Our photometric testing procedure verifies the performance of every installed lighting system in the field.

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  Light Level Readings & Distribution Accuracy

  We measure lux levels across representative interior and exterior spaces, based on use and code expectations, and confirm even light distribution, identifying inconsistencies throughout the space.

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  Underlit & Overlit Areas

  We test highlights areas with insufficient or excessive illumination that may affect safety, comfort, or compliance.

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  Fixture & Output Verification

  We confirm that the installed fixture types and light output match the approved plans and specifications.

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  LPD Review

  When required, we review Lighting Power Density (LPD) to support IECC or local energy code compliance.

TESTING READINESS

What We Need Before Testing

To perform accurate measurements, we need:

Photometric testing requires minimal preparation. No special setup is required, and testing is typically completed during normal site access.

Access to the space

Lighting fully installed and powered

Confirmation of areas to be tested

Available lighting schedules or plans (if applicable)

WHERE WE WORK

Photometric Testing Across North Texas

We provide professional photometric testing services throughout the Dallas–Fort Worth region and surrounding Texas markets.

We expand throughout:

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  Dallas

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  Fort Worth

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  Arlington

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  Irving

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  Plano

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  Frisco

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  Richardson

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  Grapevine

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  And other North Texas communities