I have been moving the lights to follow the growth on the tree. I don't want to move them to the center, above the tree, since then the leaves won't get enough light. The leaves have gotten bigger, which they do when they are in low light levels, but other than that the tree is healthy, and happy enough to put out a lemon.

How powerful are the compact fluorescents?

They are just two "plant" or "sunlight" bulbs that I bought at Walmart. They fit into regular desk lamps (60 watt, I believe).

Lights of America makes a 65 watt CFL bulb that is normally used for an outdoor security light. You can modify it to be used as an indoor plant grow light. I use a couple of these above some of the plants I grow indoors.

They are just two "plant" or "sunlight" bulbs that I bought at Walmart. They fit into regular desk lamps (60 watt, I believe).

I suspect they are "60W equivalent", so probably 13W fluorescents. If that really is what they are then you can do a lot better before moving to a $500 grow light. The box stores have move powerful CFLs like bid2win mentions. They are very easy to find up to about 42W and they will just go into an ordinary lamp so long as it doesn't have a cramped fitting or shade. Then they are mostly sold as outdoor lighting, I've seen up to 105W as a security light. Two of those would be enough for any single plant indoors. Watch out you don't fry it!

If they actually are two 60W fluorescents then the next move upwards is quire a big step since you already have 120W putting out maybe 8000 lumens. You can get really powerful compact fluorescents, up to 250W, but they are by no means something you can just plug into a lamp socket. You can get an array of fluorescent tubes, maybe 3 or 4 2x40W shoplights, or 4x54W T5. Beyond that, HID lamps are the best way to get 400W-1000W of light from a simple package.

I just got 120 watt CFL bulb & Im waiting for. The reflector to come by tomorrow but only problem is what to hang 2 hangers from( in my small bedroom)I need to know how close to keep the 120 bulb to my 2 ft.tree? Lost all flowers a bunch of yellow leaves & one lemon 2 1/2mo. Ago w I got tree.. I need it to do more than survive. That's what it's doing.Cant wait for reflector, but how close? I need it to grow. It's everbearing but you'd never know it. How close?

You can judge where to hang it by the back of your hand. slightly warm is good, too warm is bad. Similar to what you feel outside when the sun is shining. Id say closest leaves should be where you can feel some heat, but not a lot from the light.