Application fields and differences between medium/high voltage ultraviolet lamps and low voltage ultraviolet lamps:

1、 Introduction to Medium Voltage Lamps

（1） Characteristics of medium voltage ultraviolet lamps:

1. High power single lamp (400w-10000w/single)

2. Energy efficiency

3. Smaller and more compact size (length not exceeding 700mm)

4. Reduce the number of UV lamps and the volume of the reactor (969 tons/hour flow rate, only 4 lamps, ultra small volume)

5. Wide wavelength, effective irradiation range of 200-400nm (can effectively remove bacteria, viruses, chloramines, chlorides, and trichloroamines).

6. Biological effects of ultraviolet light

（2） There are some important differences between medium pressure (MP) ultraviolet lamps and the more well-known low pressure (LP) ultraviolet lamps, which are the main reasons for choosing a medium pressure ultraviolet system:

1. Some applications may require the use of medium voltage UV lamps because they emit a wider range of wavelengths. These applications include:

In public swimming pools, only by emitting ultraviolet light with a wavelength of 200-400nm can the smell of chloramine (bound chlorine) and chlorine be effectively eliminated.

2. The other two important reasons for using medium voltage ultraviolet lamp technology are:

1) In order to reduce the installation footprint, high-power medium voltage lamps have greatly reduced the size of the UV reactor.

2) Due to the higher power of a single medium voltage ultraviolet lamp, the number of UV lamps used is greatly reduced.

3) Medium pressure ultraviolet lamps can withstand higher pressures and have a wider temperature resistance range, making them suitable for higher pressures and stricter usage environments (BEST UV can withstand pressures up to 16 kilograms and can withstand temperatures up to 100 degrees Celsius).

2、 Introduction to Low Voltage (LP) Lights:

（1） Characteristics of Low Voltage (LP) Ultraviolet Lamp

Some important differences between low-pressure (LP) ultraviolet lamps and medium pressure (MP) ultraviolet lamps:

1. The power of a single lamp is relatively low (the power of a single lamp is less than 320w)

2. Sterilization efficiency, compared to medium voltage lamps, the sterilization time is longer (low voltage zero to a few seconds, medium voltage less than one second)

3. Low pressure (LP) ultraviolet lamps become longer in size as the wattage increases

4. The need for a larger capacity ultraviolet reactor requires setting the length of the reactor based on the number and length of the lamp tubes. Therefore, a slightly higher power low-voltage ultraviolet system takes up more space.

5. Low voltage ultraviolet lamps can only emit a wavelength of 254nm.

（2） Some application areas that use low-pressure ultraviolet lamps are mainly due to:

1. Low processing capacity and low power requirements, especially in the field of water purification.

2. Frequent opening and closing operations are required, and medium voltage ultraviolet is generally managed by a central controller, with delay protection for both opening and closing. Therefore, frequent opening and closing are not possible.

3. Low voltage ultraviolet lamps have high conversion efficiency, with up to 40% of the power converted into sterilization energy. Moreover, the 254 nanometer wavelength has a stronger targeted disinfection effect on bacteria and viruses.

At present, Daisile has introduced the BEST UV and LP UV disinfection systems for users to choose from.