Hydroponics GAT An Introduction To Hydroponic Gardening | Page 11

 Incandescent Lamps
 These are standard household bulbs that you will find in your home.
You can use them, but it is better to avoid because they are very
inefficient. In fact, their efficiency rate is no more than 5%. Moreover,
the spectrum of light that these bulbs produce is not suitable for
indoor plants. Another issue is that they produce a lot of heat, which
makes them quite ineffective when it comes to hydroponic plants.
 Fluorescent Lamps
 They are quite popular and work well for indoor plant growth. In
terms of efficiency, they are at least 5 times more efficient as
compared to incandescent bulbs. They use less electricity and
produce a reasonable amount of light. If you want to use these bulbs,
be sure to go to a store selling hydroponic supplies and ask for high-
output fluorescent. Just keep in mind that you may be better off trying
other grow lights if you have large plants because they light they
produce cannot penetrate deep into those plants. You may find
compact fluorescent lamps more effective in this regard.