Lumens to Lux Converter
This handy online converter will give an approximate lux value for your LED strip light installation, based the the lumens per metre of your LED strips, and their distance from the surface being lit.
What does a lux value measure?
Lux offers a means to measure ‘illuminance’ – which is the intensity of light falling on a particular area. One lux is defined as the illumination that will light a surface one metre from a single candle, which is to say, it’s the light produced by one lumen over an area of one square metre.
How the lumens/lux converter works
The approximate lux equivalent is derived by first calculating the surface area (in square metres) that an LED-strip installation will illuminate, based on the LED strip’s beam-width and its distance from the surface being lit.
The total lumens produced by the installation are then divided by the area, to give the approximate illumination.
- A narrow beam will light a smaller area more brightly, while a wider beam will light a larger area with less intensity;
- A light-source close to the surface being lit will light a smaller area more brightly, while a more distant source will light a larger area with less intensity.