Solar Performance LUX Measurement
Solar performance discussions on these boards often have phrases like “overcast day”, etc. I’m wondering if one of the inexpensive phone apps would lead to a better understanding of panel performance....
Forum Discussion
I have two LUX apps on my phone
How they compare to the one in the link...IDK
What I did was use them to compare readings between fluorescent ceiling lamps..And LED ceiling lamps
Side by side readings turning the lamps on and off , phone at waist height beneath fixture
No way for me to calibrate to a known source , to make lux to watt readings
I like the idea...read the lux at the panel..then record the watts from the controller out Turnigy meter
The next time I get out the telescopic ladder and get on the roof
I might do that
But it will only be relative , because I don't have a dedicated calibrated lux metre
How they compare to the one in the link...IDK
What I did was use them to compare readings between fluorescent ceiling lamps..And LED ceiling lamps
Side by side readings turning the lamps on and off , phone at waist height beneath fixture
No way for me to calibrate to a known source , to make lux to watt readings
I like the idea...read the lux at the panel..then record the watts from the controller out Turnigy meter
The next time I get out the telescopic ladder and get on the roof
I might do that
But it will only be relative , because I don't have a dedicated calibrated lux metre
