Using your Laita Rechargeable LED Table Lamp is easy. First, assemble it as required. To turn the lamp on or off and adjust the brightness, simply touch the touch sensor dimmer. When the lamp runs out of power, use the USB port to recharge it, which takes about 3.5 hours. You can enjoy up to 7 hours of light at maximum brightness. When it comes to maintenance, always remember to disconnect the power before cleaning. Use a soft, dry cloth to gently wipe the lamp. Stay away from chemicals and household cleaners because they can harm the lamp's finish. Also, be aware that the lamp contains chemicals like DEHP and lead, which can cause cancer, and affect development and reproduction.