Operational check: OK Body only LonFine Desk Light LED Lamp, Eye-Friendly, 3-Step Dimming, Cordless, USB Charging, Desk Lamp for Reading, Working from Home, Telework, etc. - White Rated: DC 5V 0.5A Charging time: 6-8 hours Operating temperature: -10°C to 45°C Battery capacity: 2400mAh Usage time: ≤5 hours Lighting modes: 3 levels + night light 12-month warranty and after-sales service The LonFine T120 desk light comes with a 12-month warranty from the date of purchase. If there is a defect in the product you receive, please feel free to contact us through Amazon. Our staff will do their best to resolve your issue. Recommended points: This desk light is gentle on the eyes as the shade completely covers the light source, preventing direct exposure to the light. The head is designed with a spot-type light, providing a wider illumination range compared to commercially available products. 3-step dimming + night light function, suitable for telework, work, study, and other situations. The simple design fits various interiors and doesn't limit placement. USB charging is possible from an adapter, mobile battery, or computer, making charging convenient.