Photosynthesis is the process by which plants use light energy to collect carbon dioxide from the atmoshphere and convert it to chemical energy in the form of sugar. The products of photosynthesis serve to nourish the plant and enable it to release free oxygen. Plants use only the spectrum of light that is visible to the human eye. Although the light appears white, it is actually a mixture of all the colours of the rainbow. Pigments, which are the harvesting units of the plants, absorb certain colours of the spectrum and reflect the rest. Chlorophyll, the main pigment used in photosynthesis, absorbs light in the violet and blue wavelengths as well as in the red, leaving the green colour it reflects, and the plant colour we see. Photosynthesis can also occur indoors, providing the artificial light source the plant uses supplies the necessary spectrum and intensity.

Wide specturm fluorescent, metal halide, and highpressure sodium are the types of lights most widely used for indoor growning. All of these lights require a ballast to operate and come in a variety of sizes and wattages's.

Homegrown provides a wide range of grown lights that provide the necessary spectrum and intensigy to suit plants' needs.

The Sunmaster line of Metal Halide Lamps was developed specifically for plant growth by closely matching the specturm of natural sunlight.

Light is the most important growth influencing factor!