I never said it was! But it does reflect the sun's light - and light is light. Whether or not it is in the correct spectrum, or strength, to promote photosynthesis and encourage growth is irrelative. The point I made (which is universally accepted - except by you) is that the, obviously reflected, light from a full moon is the threshold one needs to stay under in order to prevent problems.You sir can’t call the Moon a light source if it’s not.