Power of the sun
The advent of indoor grow lights now makes it possible to transform even the darkest cellar or basement into a tropical paradise. Thanks to technology we can grow and plant our favorite fruits, vegetables, flowers, herbs, and other plants, anywhere, all year-round. Horticultural grow lights are divided into three categories.
H.I.D. (High-Intensity Discharge) lamps. There are two types of H.I.D. lights:
Metal Halide lamps are second only to the sun as a primary light source. They emit a large amount of light in the blue spectrum and are ideal for promoting lush, leafy growth.
High-Pressure Sodium lamps are perfect supplemental light sources, and their high emission in the orange-red spectrum is excellent for promoting flowering and budding.
Florescent grow lights have benefited from the improved lumen output of T5, full spectrum, and compact florescent lights. They are great for starting seedlings and, when used in groups, work well for plants with low light requirements. Florescent lights produce much less heat than H.I.D. lamps, but their lower lumen output makes them less effective for stimulating bud and flower growth.
Incandescent lamps are chiefly supplemental light sources. They are less expensive than other grow lights and work best for plants with low lumen requirements.
Whether you're a serious horticulturist or a amateur gardener, burgeoning interest in indoor gardening has made indoor grow lights available at many locations, including: