Grow Lights and Spectrums
Traditional high-intensity discharge (HID) grow lights used for indoor horticulture applications, such as high-pressure sodium (HPS) or metal halide (MH) lamps, use toxic metal vapours and lots of electrical wattage to produce light that is bright enough to grow plants under, and even then there is an issue with the spectral quality of the light produced.
Differing spectral wavelengths of visible light are referred to as colour temperature and are measured in kelvins (K). Lower colour temperatures in the 2,200-2,400K range are seen by the human eye as soft reds and oranges, and are called 'warm' colours, while higher colour temperatures measured at 6000K and above are seen as vivid and bright blues. Most plant species require differing spectral wavelengths of light at various stages of their growth cycles. Some species such as lettuce, evening primrose and mullein actually need light to achieve germination, and many plants require short-wavelength blue-spectrum light at the young seedling stage in order to promote healthy and strong stem growth. Mature flowering and fruiting species need longer-wavelength red-spectrum light at the later stages of their growth cycles.
While traditional gas-discharge grow lamps are deficient at one or the other end of this light spectrum, the UFO LED grow light produces the full spectrum of blue and red wavelengths to promote healthy photosynthesis at all stages of plant growth.
UFO LEDs for Indoor Plants
The UFO LED grow light system is ideal for all phases of plant growth, from seedling through flowering and fruiting, because it has been engineered to produce only those spectral ranges of light that plants need at all stages of growth. No energy is wasted producing light in the spectrums useless to plant photosynthesis, such as the green wavelengths that are invisible to plants, and no energy is wasted creating heat, which is an undesirable by-product of traditional gas-discharge grow lights. The UFO LED therefore uses less power, produces more light per watt, creates less pollution and in the long run can realize a cost savings up to 80 percent over traditional grow light systems.