This may or may not be pertinent from the Ecowitt driver wiki

https://github.com/gjr80/weewx-gw1000/wiki/Understanding-Ecowitt-LAN-Wi-Fi-Gateway-API-radiation-fields

Colin

On Sat, 2 Sept 2023, 12:18 Greg Troxel, <[email protected]> wrote:

> I'm writing a new message since the list is wackily rejecting mail.
>
>
> Total light is an interesting concept, and it is not clear that it makes
> sense.
>
> One could measure an energy flavor of illuminance and thus the units
> would be lux-s or lux-hours.   However, lux is a perceptual unit across
> wavelength, and that raises the question as to how 1 lux for an hour
> compares to 3600 lux for 1s and then total darkness the rest of the
> hour.  That's  extreme, but still.
>
> One could also integrate a radiometric measurement, taking W/m^2 and
> ending up with J/m^2.  This makes clearer physical sense.
>
> I am curious what the conceptual basis and rationale is for what Acurite
> is graphing.  I'm not saying it doesn't make sense, just that it
> immediately seems very tricky.
>
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