I'm looking forward to doing some photography projects indoors, but I'm having a hard time differing between sources of light around me. I suspect that the lighting system in my basement is not as bright as I suspect it to be. Thus, I came to the conclusion that the upstairs room was a lot brighter, but I don't have anyway to actually test this. I was wondering if there was any type of device to actually test how the brightness is different in each room. Incase you would like to know what type of lighting system I am using, I am using a "http://home.howstuffworks.com/fluorescent-lamp.htm" [Broken]. It's very important that I keep the room lit properly because my pictures are darkening where I don't want them to. I was wondering if there were any types of devices that tested the wavelength or brightness of a certain area in a room or the room itself. Hopefully something affordable.