What is the conversion factor from lux to nits and how can it be applied in determining the brightness level of a light source?

The conversion factor from lux to nits is 1 lux 1 nit. This means that the brightness level of a light source in lux is equivalent to the brightness level in nits. To determine the brightness level of a light source, you can measure the illuminance in lux using a light meter and then convert it to nits by applying the conversion factor. This allows for a standardized comparison of the brightness levels of different light sources.