222 UV Light 60w Far UVC Light Large Radiation Area Fast Sterilization

FEATURES

1. Complete lamps can be used directly

2. Pure 222 nm

3. Environmentally friendly/mercury-free

4. Safe disinfection technology

5. Wide operating temperature

6. Instantaneous on/off

7. Large production capacity

8. No degradation in output over the life of the lamp

9. Spectrum testing by the third-party

10. EPA, ISO9001, CE certified

SPECIFICATIONS

1. Model no.: UWF222-60W

2. Peak Wavelength: 222nm

3. Size: 35031288mm

4. Input Voltage: 24vDC

5. Power: 60w

6. Beam Angle: 60 degree

7. Radiation Intensity: 3000μw/cm²(0cm)

8. Operating Temperature Range: -10 degree - 150 degree

9. Materials: Quartz glass, Polymer end caps, Krcl noble gas

10. Lifespan: 4000 hours

APPLICATIONS

Air Disinfection

Surface Disinfection

Room Sanitisation

Sanitisation for Public places

Home, office, school, hospital

Exploratory clinical trial on the safety and bactericidal effect of 222-nm ultraviolet C irradiation in healthy humans

Surgical site infection is one of the most severe complications of surgical treatments. However, the optimal procedure to prevent such infections remains uninvestigated. Ultraviolet radiation C (UVC) with a short wavelength has a high bactericidal effect; however, it is cytotoxic. Nonetheless, given that UVC with a wavelength of 222 nm reaches only the stratum corneum, it does not affect the skin cells. This study aimed to investigate the safety of 222-nm UVC irradiation and to examine its skin sterilization effect in healthy volunteers.

This trial was conducted on 20 healthy volunteers. The back of the subject was irradiated with 222-nm UVC at 50–500 mJ/cm², and the induced erythema (redness of skin) was evaluated. Subsequently, the back was irradiated with a maximum amount of UVC not causing erythema, and the skin swabs before and after the irradiation were cultured. The number of colonies formed after 24 hours was measured. In addition, cyclobutene pyrimidine dimer (CPD) as an indicator of DNA damage was measured using skin tissues of the nonirradiated and irradiated regions.

The results showed that all subjects experienced no erythema at all doses. The back of the subject was irradiated at 500 mJ/cm², and the number of bacterial colonies in the skin swab culture was significantly decreased by 222-nm UVC irradiation(222 UV light 60w far UVC light large radiation area fast sterilization). The CPD amount produced in the irradiated region was slightly but significantly higher than that of the non-irradiated region.

This research showed that a 222-nm UVC at 500 mJ/cm² was a safe irradiation dose and possessed bactericidal effects. In the future, 222-nm UVC irradiation is expected to contribute to the prevention of perioperative infection.

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