Using this table lamp is a breeze. First, assemble it according to the instructions as it requires full assembly. Once assembled, plug it in. You can control the light brightness with the 4 - way touch dimmer switch located at the bottom of the brass piece under the shade. The in - line switch also gives you an easy way to turn the lamp on and off. For maintenance, use a soft, dry cloth to wipe the metal base and the shade regularly to keep it clean. Avoid using abrasive cleaners as they may damage the black marble finish. This lamp can be used commercially, but make sure to place it on a stable surface. And remember, you'll get the exact product based on the options you select on the page.