Using your Louis Poulsen Panthella Table Lamp is easy. First, find a dry spot for it as it's designed for dry locations only. Plug the cord into a power outlet and use the in - line switch to turn it on. You'll need to buy a 75W 120V E26 A19 incandescent lamp separately and install it in the lamp. To maintain the lamp, gently wipe the white opal and white acrylic parts with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials as they could damage the lamp's surface. If you're not satisfied with the lamp, you can return it within 30 days under our return policy.