What is the Light Meter and how can I use it for my plants?

The Light Meter is a feature that helps you determine the lighting level for your plants.

To accurately measure the lighting, turn off all artificial light sources and place your phone where you want to position the plant. Aim the camera at the light source. 

With the Light Meter, you can not only measure the lighting level but also find out the appropriate lighting condition for specific plants.
 Go and check the lighting for your plants now!