Lux Light Meter Pro for Photo

I have loved this app for plant care but I have had a bit of confusion and difficulty over an issue or two. I grow my plants under arterial grow light leds and the app does not make it clear which setting should be used. The indoor setting appears much too low to be accurate. Otherwise it’s a great app for comparing light levels in different spots. Hopefully I can get clarification on how to have accurate readings under artificial lighting.

I’m using just the lux function for placing portable solar panels. Seems to work fine but: What is difference between indoor and outdoor (toggled by selecting icon) for lux? Selecting outdoor makes number much higher. What does this difference mean? This feature not explained and I could not find comprehensive documentation.

The ability to fine-tune individual values is a game-changer, allowing me to create the perfect balance of light. If you're taking photography seriously, you sure need this app.