Using your Aria Adjustable LED Task Lamp is easy. First, adjust the clamp to fit securely on your tabletop. The adjustable range from 0 to 2 3/8 inches allows you to find the perfect fit. Once it's set up, plug it into a 120 - volt outlet. You can use the full - range dimmer on the shade to adjust the light to your preference. When it comes to maintenance, simply use a soft, dry cloth to clean the metal shade and the lamp body. Avoid using harsh chemicals as they might damage the finish. Remember, this lamp contains chemicals like lead, so keep it out of reach of children. If you have any concerns about the chemicals, visit www.P65Warning.ca.gov for detailed information.