The 6-point hospital lighting audit lighting designers actually use
A 20-minute walkthrough that catches glare at the patient's pillow, flicker at the night-dim setting, and the CRI-90 lie — before nurses get migraines or an infection-control audit fails. Built from 12 years of healthcare retrofits.
- UGR measured from the patient lying down — not the standard observer
- Slow-mo flicker test at 100%, 50% AND 10% dim (where tunable drivers fail)
- CRI 90 vs CRI 95 / R9 ≥ 90 — what each clinical space actually needs
- Circadian tunable-white commissioning: DALI-2 D4i / Casambi scenes
- Illuminance per EN 12464-1: ward, exam, OR, corridor, nurse station
- Controls, L80B10 lifetime, 5-year warranty language for the tender
- Printable scoring sheet (1 page per room)
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What's inside the 4-page PDF
1. Glare (UGR)
Measured from the patient's supine view, not the standard observer. Target < 19 ward, < 16 exam.
2. Flicker
Slow-mo phone test at 100%, 50%, 10% dim. PstLM < 1.0 everywhere — where 'premium' tunable drivers fail.
3. CRI & R9
Why CRI 80 is malpractice. R9 ≥ 90 for skin tone. Demand TM-30-20, not just CRI.
4. Circadian
Tunable 2700–6500K on DALI-2 D4i or Casambi. The system is useless until the scene is commissioned.
5. Illuminance
EN 12464-1 targets per room type — ward, bed-head, exam, OR, corridor, nurse station.
6. Controls & Warranty
Occupancy + daylight sensors, L80B10 @ 50,000h, 5-year warranty language to put in the tender.
Who made this
The XHL lighting design team · Shenzhen
We've designed and manufactured healthcare, classroom and retail lighting since 2010 — for hospitals and clinics in Germany, the US, Singapore and the UAE. This is the same checklist our designers run during on-site audits, condensed so any facilities manager can use it.
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