Hello All, I'll start by saying I'm new to orchids (I've only had them for a year). I have a few cattleyas in my collection. Two I just recently purchased, and another that I have had for a year. The orchid that I have had for a year was blooming size when purchased. It hasn't bloomed. The leaves aren't that nice yellow-green that they should be. There is a part of the leaf that has a reddish color, which could mean a bit of sunburn. Additionally the new cattleya orchids seemed to be lighter in color when they first arrived. The color seems to have darkened - although I could be wrong. This is caused me to consider that I might need artificial lighting. I'm in zone 6B, so our winters do limit sunlight. The orchids are also in a SW window. Before buying the lights, I purchased a light meter. During the afternoon (when the light was the brightest) the light meter measured between 3800-4500 footcandles. Mostly within the 4,000 range. However in the morning (around 8:00) it's between 100-200 fc. I know that most catttleya orchids need around 3000-3500 fc. Does this mean 3000/3500 fc consistently? Or the peak light measurement should be 3000/3500 fc? If artificial lighting is needed, I was going to purchase something like this: Amazon.com : SunBlaster 13 Watt CFL Grow Lamp 4 pack : Plant Growing Light Bulbs : Patio, Lawn & Garden Which lights up to 900 lumens (I don't know the footcandle measurement, though). So, do I need artificial light? If so, is the above bulb suitable? Thanks!