The LWA539-BK 3 Watt Bedside LED Reading Light with USB Port is a surface mounted bedroom reading light that features a slim cylindrical pen-style shape. It outputs 120 lumens of 3000k warm white light at a 30-degree beam angle. This will shine ample light across the book pages without disturbing anyone beside you. It features a USB port that remains on even when the light is switched off.This LED reading light is fabricated to last out of high quality aluminium and comes finished in black. The integrated LED is intended to last a minimum of 20,000 hours.The backplate measures 180 millimeters by 60 millimeters with a 35-millimeter projection from the wall, while the arm measures 110 millimeters by 29 millimeters. On this backplate is an easy to use rocker style on/off switch.