Rather than for light levels, I am using the irradiance sensors to estimate how much heat my windows are getting from the Sun and whether it is worth it to close the blinds.
The conversion factor from lx to W/m2 for the Sun is around 120 lx/(W/m2), so it's just a constant value for the relevant range of Solar illuminances. Here is a reference:
Rather than for light levels, I am using the irradiance sensors to estimate how much heat my windows are getting from the Sun and whether it is worth it to close the blinds.
The conversion factor from lx to W/m2 for the Sun is around 120 lx/(W/m2), so it's just a constant value for the relevant range of Solar illuminances. Here is a reference:
https://www.extrica.com/article/21667
Could you add irradiance as an output option to your integration?