Welcome to ledgrowlight-aquariu.com.au, we are the professional LED grow lights manufacturers, we offer diy LED grow lights service, all LED products are high quality with 3 years warranty, ships to worldwide, free shipping to australia and new zealand. if you have any ideas or need help, please feel free to email us([email protected]). LED Grow Light Knowledge A grow light or plant light is an artificial light source, generally an electric light, designed to stimulate plant growth by emitting an electromagnetic spectrum appropriate for photosynthesis. Grow lights are used in applications where there is either no naturally occurring light, or where supplemental light is required. For example, in the winter months when the available hours of daylight may be insufficient for the desired plant growth, grow lights are used to extend the amount of time the plants receive light. Grow lights either attempt to provide a light spectrum similar to that from the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated. Outdoor conditions are mimicked with varying colour temperatures and spectral outputs from the grow light, as well as varying the lumen output (intensity) of the lamps. Depending on the type of plant being cultivated, the stage of cultivation (E.G.: the germination/vegetative phase or the flowering/fruiting phase), and the photoperiod required by the plants, specific ranges of spectrum, luminous efficacy and colour temperature are desirable for use with specific plants and time periods.