Using your Leia Ceramic Table Lamp is a breeze. Just plug in the light - grey cord and use the on/off rotary switch to turn it on or off. The included 9W LED A19 bulb will give you 805 lumens of light. When it comes to safety, make sure to always disconnect the power source before you clean the lamp or the shade. Use a soft, dry cloth to wipe them down. Avoid using chemicals or household cleaners, as they can damage the finish of the lamp. The lamp has a UL certification, so you can trust its safety. If you need to replace the bulb, it's an E26 screw - terminal type, and the maximum wattage is 100. Keep in mind that the lamp contains chemicals like DEHP and lead, which can cause cancer, developmental, and reproductive issues. So handle it with care and keep it out of reach of children and pets.