Using this Krew Table Lamp is easy. First, assemble it as required. Then, find a nice spot for it in your room. You can turn it on and off using the ON/OFF rotary switch. The included 9W LED A19 bulb provides 805 lumens of light. When it comes to maintenance, always disconnect the power source before cleaning. Use a soft, dry cloth to wipe the lamp shade and fixture. Avoid using chemicals and household cleaners as they can damage the finish. And keep in mind, this lamp has some Prop 65 chemicals, so handle it with care. If you need to replace the bulb, it's an E26 screw - terminal type, and the maximum wattage it can handle is 100W.