Specification Uses high-quality 311nm special UV lamp as light source, offering excellent stability and long service life. Compact size and lightweight design allow for easy portability; handheld operation for convenient use. Affordable and simple to operate, enabling patients to administer treatment at home. Unique comb design allows effective treatment of the scalp. Additional reflectors are incorporated to enhance radiation efficiency. Features unique anti-interference technology to ensure normal operation in environments with strong electromagnetic fields. Blue LCD display with microcomputer timer function ensures accurate treatment timing (applicable to models equipped with LCD control circuit). Features Working voltage: AC120V 60Hz, AC220V ±10%, 50Hz ±2%, or AC230V ±10%, 50Hz ±2% (export models for EU region use AC230V ±10%, 50Hz ±2%; other voltage ratings as indicated on product nameplate). Power rating: 50VA Fuse protector: T0.5A L/250V 3.6x10mm Operating temperature: 5°C to 40°C Relative humidity: ≤85% Atmospheric pressure: 700hPa to 1060hPa Structure: handheld Work distance: 3cm ±0.5cm Effective radiant area: 55cm² ±10% Timing: Device includes a built-in timer with timing accuracy within ±2%. Note: The maximum radiating intensity is defined as the initial intensity of the product, expressed in milliwatts per square centimeter (mW/cm²). UV lamp intensity decreases over time due to aging. Users should follow the recommended intensity range provided in the instructions to ensure effective treatment.