① Wavelength: usually we think 240-290 & nbsp; Nm wavelength deep ultraviolet light has better anti-virus function;

② Light power: the key to the sterilization effect of deep UV uvc-led technology is the UVC light wave generated by LED beads. The UVC ultraviolet energy generated by LED beads with different power is different. The light power emitted by different driving currents of the same uvcld is different. Under sufficient heat dissipation conditions, the greater the driving current, the greater the light power;

③ Space size and illumination distance: the sterilization effect of deep UV uvc-led is also closely related to the environment where the lamp beads are located. The longer the exposure time, the better the sterilization effect. If the light source is far away, the sterilization effect is not ideal, so the deep UV uvc-led sterilization technology is more suitable for close killing;

④ Illumination time: for the same UVLED, the longer the illumination time, the better the sterilization and disinfection effect;

⑤ Projection angle: the bactericidal effect of ultraviolet light is limited to direct irradiation, and there is no bactericidal effect in the non direct irradiation area.