A clinical paper, a catalogue specification and a delivery test answer different questions. Keep them in separate parts of a phototherapy evaluation instead of treating one as proof of the others.

The useful procurement output is an evidence register: each important claim should identify the exact model, configuration, supporting document and unresolved question. This makes conditional offers easier to compare.

Classify each claim before comparing prices

Research can inform clinical practice and expose useful evaluation questions, but results depend on the studied patients, setup and monitoring. A catalogue establishes what is offered, subject to confirmation. Local acceptance establishes whether the delivered configuration meets the agreed checks. None of these alone proves every safety or performance claim.

Convert uncertainty into a contract question

For a statement such as “intensive phototherapy”, ask for the measurement method, spectral units, distance and illuminated area rather than copying the phrase into the specification. For a certification claim, request the applicable document and model coverage. Do not treat a general company certificate as proof for every device.

Keep the decision traceable

Use three outcomes: supported, clarification needed, or not demonstrated. Record why a requirement matters to the service. Where evidence is missing, ask whether the offer can be clarified before award; do not silently score an unverified claim as compliant.

Procurement comparison

Decision before ordering

Retain the final evidence register with the purchase record. A later accessory substitution or model revision should trigger a review of affected claims, not automatic acceptance under the original quotation.