Perpetual lamp is mainly used for greenhouse seedling, greenhouse vegetables, indoor gardening, plant propagation, food production, including indoor hydroponics and aquatic plants. Although most of the perpetual lamp is used in agriculture and industrial water, they can also be used in families.
According to the inverse square law, the intensity of light radiated from a point source (in this case, a bulb) to a surface is the source (the square of the distance from the surface is inversely proportional, if an object is two times as far apart, it receives only a quarter of the light), which is a serious obstacle to indoor growers, the adoption of many technologies, the use of which is as efficient as possible Ground mirror, therefore, is often used in the lamp to maximize the light efficiency of the light. Plants or lights are moved together as much as possible to give them equal illumination and surrounding plants, rather than all the light from the lights falling on them.
As the plant growth lamp, the most widely used HID lamp and rare earth three primary color fluorescent lamp are used for perpetual lamp. Indoor flower and vegetable growers usually use rare earth tricolor fluorescent lamps and metal halide (MH) HID lamps, but the metal halide of rare earth tricolor fluorescent lamps is due to their efficiency and economy.
Sometimes used in metal halide lamps (or nutrition) for the first stage of growth, because they have some blue light, however, they have a surrounding yellow spectral peak intensity. The blue spectrum of light may trigger a greater nutrient response in the plant. High pressure sodium lamps are used in the second (or reproductive) stage of growth because they have a red light. The red spectrum of light may trigger a greater response from flowering plants. If the high pressure sodium lamp is used in the vegetative growth stage, the plant will grow a little faster, but there will be longer stem nodes, and the whole may be longer.
In addition, the red spectrum and the high pressure sodium lamp bulb are added, and the partial blue spectrum MH bulb is added to provide a more comprehensive spectrum, which increases the flexibility in the stage of nutrition growth and flowering.
LED technology has been introduced into the plant growth lamp Market in recent years. The perpetual lamp is designed to create an indoor plant growth lamp. The exact wavelength required for photosynthesis is used to create LED perpetual lamp for the first stage (or nutrition) and second (or fertility) growth stage.