Using your NOOSA 40 DC ceiling fan is easy. First, install it following the instructions in the manual. Once installed, use the remote control to turn it on and select your desired speed. You can also use the dimmable function if you want softer lighting, or switch the fan's direction for different airflows. For night mode, simply press the corresponding button on the remote. When it comes to maintenance, make sure to turn off the fan and unplug it before cleaning. Use a soft, dry cloth to wipe the blades and enclosure. Replace the two AAA alkaline batteries in the remote when they run out. Also, check the motor and other parts regularly for any signs of damage. If you encounter any issues, refer to the instruction manual or contact customer service.