[Cynthia, Prescott, AZ]

The best light for giving the plants the extra light they need is flourescent, as it will not make the plant too warm. If your lamp normally takes incandescent light bulbs, get the brightest spiral replacement flourescent bulb instead, altho the smaller ones might fit better inside the reflector. The Den can be very close to flourescent tubes, and the Phal something like a foot or or two away. Since I don't grow under lights, I haven't worked out the distance for Phals, but high light plants as mentioned above need to be pretty close. Growing under lights also requires a timer, as you should try to set the day length to something similar to the current day length plus an hour or so to cheat a little.