The lux (symbol: lx) is the unit of illuminance, or luminous flux per unit area, in the International System of Units (SI). [1][2] It is equal to one lumen per square metre.

This article explores the concept of lux, also known as illuminance, and provides charts outlining recommended light levels for various indoor and outdoor environments.

4 days ago · Lux measures how much light actually reaches a surface. Learn what lux levels mean for your eyes, sleep, mood, and everyday spaces.

Lux is the standard unit used to measure illuminance. One lux equals one lumen per square meter. This tells you how much light reaches a particular surface, whether it be a desk, floor, or countertop.

Lux level testing is a scientific method used to measure the intensity of light in a given area. The term “lux” refers to the unit of illuminance, which measures how much luminous flux (light) is spread over …

Lux, unit of illumination (see luminous intensity) in the International System of Units (SI). One lux (Latin for “light”) is the amount of illumination provided when one lumen is evenly distributed over an area …

Sep 2, 2025 · Lux (lx) is a unit of illuminance, describing the total amount of visible light distributed over a specific area. One lux equals one lumen per square meter (1 lx = 1 lm/m²). This means lux …

Learn how to measure light using lux and foot-candles. Understand the difference between these units and how the Mastech MS6612A light meter makes light measurement easy and accurate.

Sep 8, 2025 · Lux (lx) measures how much light actually falls on a surface, such as a desk, floor, or wall. While lumens describe the total output, lux tells us how that light is distributed in a given area. …

Mar 26, 2025 · Lux (lx) is the unit of measurement for illuminance, quantifying the amount of light falling on a specific surface area. Specifically, one lux is equal to one lumen per square meter (1 lx = 1 lm/m²).