A little study and testing may be needed to determine if the light intensity or duration is sufficient in your home. Where plants must be grown in windows with bright light, you may need to use a very sheer curtain to diffuse and reduce the light reaching the plants. In an excessively high light intensity, plants can be scorched or at best will be quite compact because of short stems and slower growth. African violets can be easily grown using artificial light. An intensity of approximately 600 foot-candles for 14 to 16 hours per day is recommended.
Inexpensive timers are available to automatically turn lights on and off.
Fluorescent lights are most frequently used and can be arranged in tiers or attached to shelves for a convenient and attractive light source. The tubes should be 12 to 15 inches above the tops of the plants. Several companies manufacture fluorescent tubes specifically designed for plant growth. The light emitted contains more usable radiant energy. One or two incandescent bulbs may be used with the fluorescent tubes.