Typical use of plant growth lamp

- Jun 10, 2019-

  1. Plant growth lamps are artificial sources of light, usually electric, designed to stimulate plant growth by emitting a spectrum suitable for light cooperation. Plant lamps are used in applications where there is no natural glow or where additional light is needed. For example, in winter, when possible daylight hours may not be enough to reach the required plant growth, lamps are used to extend the time for plants to receive light. If plants don't get enough light, they grow in vain.

  2. Introduction:

    Plant growth lamps are artificial sources of light, usually electric, designed to stimulate plant growth by emitting a spectrum suitable for light cooperation. Plant lamps are used in applications where there is no natural glow or where additional light is needed. For example, in winter, when possible daylight hours may not be enough to reach the required plant growth, lamps are used to extend the time for plants to receive light. If plants don't get enough light, they grow in vain.

    Growing lights either attempt to provide a spectrum similar to that of the sun, or to provide a spectrum more suitable for the needs of the plants being cultivated.

    Simulates outdoor conditions from the different colors, temperatures and spectral outputs of the growing lamp, as well as changing the lumen output (intensity) of the lamp. Specific plant and time periods are desirable, depending on the type of plant being cultivated, the stage of cultivation (e.g., germination/vegetative stage or flowering/fruiting stage), the photoperiod required by the plant, the specific range of the spectrum, the luminous efficiency, and the color temperature.

    In 1868, Andrei Famintsyn, a Russian botanist, was the first to use artificial light for plant growth and research.

  3. Typical usage:

    Plant lamps are used for indoor gardening, plant reproduction and food production, including indoor hydroponics and aquatic plants. Although most plant lamps are used in industry, they can also be used in the home.

    According to the inverse square law, reach the surface of the point source (in this case is the light bulb) radiation intensity of light source and surface distance is inversely proportional to the square of the distance of (if a twice as distant place, it receives only a quarter of the light) this is the serious obstacle indoor growers, many techniques are used to use light as efficiently as possible. Therefore, reflectors are often used for lighting to maximize light efficiency. The lamps or lamps are moved as close as possible so that they have the same illumination and all light from the lamps falls on the plants rather than the surrounding area.

    Examples include incandescent, fluorescent, metal halide (HID) lamps and light emitting diodes (leds). Today, the most widely used professional lamps are HID and fluorescent lamps. Indoor flower and vegetable growers commonly use high pressure sodium (HPS/SON) and metal halide (MH) HID lamps, but fluorescent and LED bulbs substitute metal halides for efficiency and economy.

    Metal halide lamps are often used during the vegetative phase of plant growth because they emit more blue and ultraviolet radiation. With the introduction of ceramic metal halide lighting and full-spectrum metal halide lighting they are increasingly used as exclusive light sources for vegetative propagation and growth. The blue spectrum may induce a greater nutritional response in plants.

    High pressure sodium lamps are also used as a single light source throughout the nutritional and reproductive stages. Similarly, they can be used as corrections for full-spectrum lighting during the reproductive phase. The red spectrum may trigger a greater flowering response in plants. Plants grow slightly faster when high pressure sodium is used as the nutrient phase.

    In recent years, LED indoor growth lights have been able to generate light at specific wavelengths. NASA has been testing to increase the efficiency of space food on the space station. The results show that plants are affected by light in the red, green and blue parts of the visible spectrum.