The main reason is: the poor flexibility of the bayonet on both sides. Solution: 1. Use the lamp pin to insert it directly sideways (not the previous snap), rotate the bayonet on one side to make it flexible, and then change to the other side! 2. If the above does not solve the problem, it needs to be replaced.
Ultraviolet sterilization uses ultraviolet irradiation to destroy and change the DNA (deoxyribonucleic acid) structure of microorganisms, causing the bacteria to die immediately or be unable to reproduce, thereby achieving the purpose of sterilization. The real bactericidal effect is UVC ultraviolet rays, because C-band ultraviolet rays are easily absorbed by the DNA of living organisms, especially ultraviolet rays around 253.7nm. Ultraviolet sterilization is a purely physical disinfection method that is simple, convenient, and free of secondary pollution. The application scope of household ultraviolet germicidal lamps is constantly expanding.
According to different biological effects, ultraviolet rays are divided into four bands according to wavelength: UVA band, wavelength 320~400nm, also known as long-wave black spot effect ultraviolet. It has strong penetrating power and can penetrate most transparent glass and plastics. More than 98% of the long-wave ultraviolet rays contained in sunlight can penetrate the ozone layer and clouds to reach the earth's surface. UVA can directly reach the dermis layer of the skin, destroy elastic fibers and collagen fibers, and tan our skin.
UVA with a wavelength of 360nm conforms to the phototaxis response curve of insects and can be used to make insect traps. UVA ultraviolet rays with a wavelength of 300-420nm can pass through special tinted glass lamps that completely cut off visible light, and only radiate near-ultraviolet light centered at 365nm. It can be used in ore identification, stage decoration, banknote inspection and other places.
UVB band, wavelength 275~320nm, also known as medium wave erythema effect ultraviolet light. Medium penetration, its shorter wavelength will be absorbed by transparent glass. Most of the medium-wave ultraviolet light contained in sunlight is absorbed by the ozone layer. Only less than 2% can reach the earth's surface. It will be particularly strong in summer and afternoon.
UVB ultraviolet rays have an erythematous effect on the human body and can promote mineral metabolism and the formation of vitamin D in the body. However, long-term or excessive exposure will cause the skin to tan and cause redness, swelling and peeling. Ultraviolet health care lamps and plant growth lamps are made of special transparent purple glass (which does not transmit light below 254nm) and phosphors with a peak value near 300nm.
UVC band, wavelength 100~275nm, also known as short-wave sterilizing ultraviolet light. It has the weakest penetrating ability and cannot penetrate most transparent glass and plastics. The short-wave ultraviolet rays contained in sunlight are almost completely absorbed by the ozone layer. Short-wave ultraviolet rays are very harmful to the human body. Short-term exposure can burn the skin, and long-term or high-intensity exposure can also cause skin cancer. Ultraviolet germicidal lamps emit UVC short-wave ultraviolet rays. UVD band, with wavelength less than 100nm, is also called vacuum ultraviolet light.