Simplecom EL818 Dimmable LED Desk Lamp with Wireless Charging Base Features Wireless Charging Base* + USB Port The lamp charges 1 device via USB or Wireless Charging at a time. It supports wireless charging for Qi Wireless charging compatible smartphones. Sleek Design with Aluminium Alloy Arm The direction of light can be lifted up to an angle of 135 degrees. Ultra-thin lamp head and aluminium alloy arm is durable and visually elegant. Flicker Free LED Lamp Multiple lighting and brightness modes, non-flickering light, which enables reading or writing longer with less eye fatigue 3 Light Modes and 4 brightness Levels Adjustable light temperature and brightness modes for reading, working and studying. Touch control for 3 lighting modes (Natural, Cool, Warm) and 4 level brightness levels Touch-Sensitive Control  Operations including power On / Off, mode switch and brightness Up / Down, are all done button-free on the touch-sensitive base   *Built-in Wireless Charger supports Qi compatible devices, e.g. Samsung® Galaxy   S3, S4, S5, S6, Note2, Note3, Note4, iPhone®8, iPhone®X, Google® Nexus 5, etc   Specifications Wireless Charging Base + USB Charger Sleek Design with Aluminium alloy Arm Flicker Free LED Lamp 3 Light Modes 4 Brightness Levels Touch-Sensitive Control Input: 5V/2.5A LED Light Max Output: 5W Intensity of illumination: 550 lux Lumen: 160Lm USB Port Output: 5V/1A Wireless Charging Output: 5V/1A Wireless Charging Standard: Qi Wireless Charging Frequency: 110-205KHz Colour: 3000K, 4500K, 6000K LED Lifespan: 50,000hrs Dimension: 25cm (Head), 40cm (Arm), 18 x 20cm (Base) Weight: 600g Operating Frequency Range: 110.2KHz – 204.72KHz Signal level field strength: 72 dBμA/m at 10 m (Peak) For more detail about radio test report please click link below 1x LED Lamp 1x USB Power Cable 1x User Manual