Lifebuoy vs. Lux — What's the Difference?

A lifebuoy is a life-saving buoy designed to be thrown to a person in water, to provide buoyancy and prevent drowning. Some modern lifebuoys are fitted with one or more seawater-activated lights, to aid rescue at night.

The lux (symbol: lx) is the SI derived unit of illuminance, measuring luminous flux per unit area. It is equal to one lumen per square metre.

Alternative spelling of life buoy

The SI unit of illuminance, equal to one lumen per square metre.

The International System unit of illumination, equal to one lumen per square meter. See Table at measurement.

In the International System of Units, the derived unit of illuminance or illumination; one lumen per square metre. Symbol: lx

To put out of joint; to luxate.

To put out of joint; to luxate.

A unit of illumination equal to 1 lumen per square meter; 0.0929 foot candle