Where do you want to look at when buying UV disinfection lamps?

by:Tepro     2021-04-09
Where do you want to look for when buying an uv lamp? 1. Look at the specifications. According to the specifications, the ultraviolet disinfection lamps are divided into 15W, 20W, 30W and 40W, and the operating voltage is 220V. According to the space required for use, such as area: 20㎡-50㎡, choose different power UV disinfection lamps. In principle, the greater the power, the better. 2. Look at the voltage The UV disinfection lamps are divided by voltage, and are mainly divided into: high pressure, medium pressure and low pressure. Daily sterilization and disinfection applications are mainly low pressure. According to national standards, the average life span is 8000 hours. Some excellent ultraviolet germicidal lamps have a lifespan of 13,000 hours. 3. According to the lamp source, it can be divided into: low pressure mercury lamp and UV LED lamp source. The low-pressure mercury lamp used in the UV ultraviolet mercury lamp uses low-pressure mercury vapor to emit ultraviolet light after being excited; the UVLED uv lamp uses an LED light source to emit light. Both low-pressure mercury lamps and UV LED ultraviolet disinfection lamps lamps are very effective sterilization methods. The difference is that there are two main spectral lines emitted by the low-pressure mercury lamp: one is 253.7nm wavelength; the other is 185nm wavelength, both of which are invisible to the naked eye.
Introduction to the control principle of UV lamps
In many current disinfection products, ultraviolet light is one of the common disinfection methods. The ultraviolet lamp in the disinfection cabinet has the same control principle as our daily household fluorescent lamp, the difference lies in the different spectrum. To drive the lamp to light up, it must be equipped with a ballast of corresponding power. There are generally two types of ballasts: inductive ballasts and electronic ballasts. The traditional inductive ballast has only two wires, which has the advantages of high reliability and long life, but it also has the disadvantages of large weight, high power consumption, noise and flickering of fluorescent lamps, especially in lower voltage applications. In the electrical environment, its shortcomings that it is difficult or even impossible to start are particularly prominent. With the development and maturity of electronic technology, electronic ballasts that can make up for the above shortcomings have been widely used in recent years. Compared with traditional inductive ballasts, electronic ballasts have the following advantages: a. The power saving effect is significant, and its power saving features are mainly manifested in: increase light output and improve lighting efficiency; low power consumption; high power factor . b. Small size, light weight, no flicker, and no noise. c. Can realize low voltage start. The fault judgment of the lamp: 1) Check whether the two ends of the lamp are blackened. 2) Use a multimeter to measure the two pins of the same end of the lamp. They should be in a short-circuit state.
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