sallyg said:Remember, LIGHT energy is the driving force for all plant functions.
I always think of the leaves on plants as being solar panels providing the plant with energy.
I don't have a light meter but I have made a small device which has a small solar panel on it with a volt meter that I can move around my house to give me some kinda idea of the light measurements although its probably not the best way but better than testing with nothing.
I've heard that there are many low light tolerant plants that can live happily in windowless offices under the florescent ceiling lights.