Using your Nordlux Liva ceiling light is easy. First, make sure it's properly installed in an indoor area. To control the light, download the Nordlux Smart app on your smartphone or tablet. Through the app, you can set different colors for the backlight and downward - facing light, adjust from cool to warm white, and dim the light as you like. If you prefer, you can also use the optional Smart Remote Control. Since it has IP44 protection, it can handle some water splashes, but don't submerge it in water. The light has a built - in dimmable LED light source, and it's made of plastic. The light has a long lifespan of 25000 hours, but avoid touching the light source directly when it's on to prevent burns. When cleaning, use a soft, dry cloth to wipe the surface gently. Don't try to replace the cable as it's not replaceable.