Lumen and lux are not the same thing. Lumen measures the total light a fixture emits, and lux measures how much light lands on a surface, so a surgical light is rated for its illuminance (lux) at the working distance, not its raw output (lumen).
What lumen and lux measure
Lumen is the total light output, a fixture attribute that does not change with distance. Lux is the amount of light on a surface, which falls with distance, so a fixture with a high lumen can deliver a low lux if the light spreads or the distance is large. For a surgical light, the figure that matters is the lux at the surgical field.
Surgical light measures
| Measure | What it means | Pourquoi c'est important |
|---|---|---|
| Lumen | Total light output | A fixture attribute |
| Lux | Light on the field | What the surgeon sees |
| Beam size | Area of high light | Sets the field size |
| Depth | Light at a distance | Keeps a deep cavity lit |
Confirm the lux at the working distance and the beam size, because those are what the surgeon works under. A light with a high lumen but a narrow beam can be too small for a long incision, and a light with a wide beam can be too low over a deep cavity.
For a US-market surgical light, an accurate description of the light output and any performance claim you make should be correct.
See the US Federal Trade Commission on product performance claims for the accuracy behind a light rating.
OEM: a surgical light commercial term
| Commercial term | Typical range |
|---|---|
| MOQ (per unit) | 5-20 units |
| Sample to approval | 10-15 days |
| Bulk | 30-45 days |
| Packing | Carton + pallet |
Confirm the MOQ, lead times and the light spec before you commit. Exact lumen, lux and beam spec: 〔待工厂确认〕.
If you want to compare a surgical light for a project, see our surgical light range so the lux at the field matches your theatre.
FAQ about lumen and lux
What is the difference between lumen and lux?
Lumen measures the total light a fixture emits; lux measures how much light lands on a surface. Lux falls with distance, so the working-distance figure matters for a surgical light.
Which figure matters for a surgical light?
The lux at the surgical field, because that is what the surgeon works under. Confirm the lux at your working distance, not the raw lumen.
Does a high lumen always mean a bright field?
No. A high lumen can deliver a low lux if the light spreads or the distance is large. Confirm the beam size and the lux at the field.
What is beam size?
The area of high light at the field. A narrow beam is too small for a long incision; a wide beam can be too low over a deep cavity.
Vous pourriez aussi aimer...
Bariatric OR Package: Table, Bed and Trolley Coordination
A bariatric OR package coordinates the operating table, the patient bed and the trolley for...
Emergency Department Equipment for Trauma, Resuscitation and Triage
An emergency department is built around speed, and its equipment has to be ready the...
Examination Room Equipment: Lights, Tables and Storage
Examination room equipment is the set of devices a clinic needs for patient assessment, the...
