Mi Smart LED Desk Lamp Pro Highlights Model. (LxBxH) 78 x 78 x 118mm. Brightness. 700 lumens (maximum), 300 lumens (minimum) Colour rendering index. Ra90. Nominal power. 14W. Bulb life. 25000 hours approx. Working temperature. -10 °C to 35 °C Working humidity. 0–85% RH. Working frequency. 2412–2472 MHz (Wi-Fi) 2402–2480 MHz (BT) Power factor 0.5 Lamp input 12V 1.0A Adapter input 220–240V ~ 50 / 60Hz, 0.45A Wireless connection Wi-Fi IEEE 802.11 b / g / n 2.4GHz Maximum output power 17.91 dBm (Wi-Fi) 5.76 dBm (BT) Professional eye protection, flicker-free, low blue light No visible ghosting, perfect lighting for the perfect you Simple, intuitive controls Outstanding, finely detailed design Vivid, true-to-life CRI