Hey everyone, i just bought a Sun System light meter that goes up to 40,000 lux. I would like to see the difference between supposedly slightly used bulbs i bought recently, and some new one that i have. Could anyone help me figure out how to use this thing. Do i need to take in account the size of the room? I would like to know the lumens in a certain area, but am confused how to convert lux to lumens. I am awful at math so if someone could break it down that would be awesome!
Thanks
Thanks