The LED Flex Lamp with USB Charging Port by Studio Designs features a daylight color temperature of 4000K for drawing and sketching. The bright 300 lumens light and soft flexible neck allow you to illuminate your work area for almost any project. It mounts easily to your desktop or shelf up to 2-1/4” thick with a durable metal mounting clamp that will not break like plastic clips. It has a UL approved plug and a power cord that is 73” long and has the on/off switch. The USB charging port at the base of the lamp makes it easy to keep your phone or other devices close and charged. The 21” long neck has a soft covering that won't pinch your fingers like metal necks. The energy-efficient LED bulbs last for thousands of hours: longer than traditional bulbs. The LED bulbs will not produce heat, so it is great for all ages and for hours of use.