If you keep bonsai indoors under artificial light, full spectrum fluorescent bulbs are a must for you.  For information on growing under artificial lights, see Tip of the Week #11.
And they're not just for Bonsai Trees.  If you have tropical or marine fish, parrots or other birds, or own houseplants that look less than 100%, Full Spectrum Fluorescent lighting could be the answer.
They are even good for people, helping the body produce Vitamin D.
Available in both the standard fluorescent tubes, or the screw-in Compact Fluorescent bulb pictured to the right (20 Watts of power provide the equivalent of an 80 to 100 watt full spectrum bulb) these Full Spectrum Fluorescent Bulbs will work wonders for all the things mentioned above.
The versatile Bulb & fixture can be mounted almost anywhere. The power cord & switch are ideal for a timer set-up or manual off & on operation. The full spectrum bulb is great for bonsai, houseplants or pets.

CF20	Full Spectrum Compact Fluorescent Screw-in Bulb	$ 19.95
S18	Full Spectrum - 18 Inch	$ 17.95
S24	Full Spectrum - 24 Inch	$ 16.95
S36	Full Spectrum - 36 Inch	$ 17.95
S48	Full Spectrum - 48 Inch	$ 14.95
VLF24	24" Full Spectrum Fluorescent Bulb & Fixture	$ 46.95