Energy efficiency mixes well with contemporary style in the Gordon LED Desk Lamp. With adjustable joints at the base arm mid-point and shade and a smooth adjustable motion this lamp can provide a wide range of light directly where it is needed. A 3 level touch dimmer switch allows for multiple brightness levels to suit your task at hand while a functional USB port located on the base allows you to charge up your smart device while working. The LED's are integrated into the lamp and are not replaceable but last 50000 hours. Used 12 hours a day this will last more than 11 years! All Adesso lighting product is either UL or ETL listed meaning that it has been tested and approved to meet the government-regulated safety standards for the USA.