Greenhouse Lighting
Fluorescent: These emit a white light and are quite inexpensive. They run for
about $100 a set. There are many advantages and disadvantages to this type of lighting. An advantage is that they can be hung very close to the plant (a couple of inches away) because they emit very low heat. The disadvantage to this advantage is that they are not effective if hung far from the plant. |
Halogen: These bulbs can range from $1-$15 depending on quality. The more heavy duty or larger lights cost around $40. These bulbs tend illuminate narrowly focused areas, but are usually very efficient. Some advantages are that they last twice as long as standard bulbs and emit a bright white light. Some disadvantages include the fact that good quality bulbs tend to be on the expensive side, and they don't have a natural quality to them. Instead of giving off a warm glow, Halogen lights give off a harsh artificial light.
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Sodium: This light is known for its yellow color. It works by creating an electric charge through sodium metal. Sodium lights give off a much more intense light and heat than fluorescent lights. Some advantages are that these lights are very efficient and can illuminate large greenhouses/areas easily. The one main disadvantage is that sodium is a highly combustible substance. It is very hazardous and can spontaneously combust sometimes when exposed to certain elements in the air. This light is priced around $10 per bulb.
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