Using your adjustable LED desk lamp is a breeze. To change the brightness, just touch the dimmer switch on the shade. You can easily find the perfect light level for reading, working, or relaxing. To charge your devices, simply plug them into the USB port on the base. When it comes to maintenance, keep the lamp clean by gently wiping it with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials as they can damage the metal finish. Be cautious about the Prop 65 warning. Since the lamp can expose you to lead, wash your hands after handling it. If you have any concerns about the chemicals, refer to the website www.P65Warnings.ca.gov for more information.