Please kindly note only USB rechargeable choice is with UV light function. Normal Battery type is without UV light.
It is not recommended to clean low hardness pearl, tortoiseshell jewelry, welding metal, electroplating metal, metal adhesive, painting process of mirror frames, watch body, luxury jewelry and other objects,
Due to lighting effects, there could be some slight differences in the color.
Please allow 1-2mm differs due to manual measurement, thanks.