Water Resistant (IP44) - Philips Hue smart bathroom lights have been rigorously tested to make sure that they are water resistant, making them ideal for lighting humid environments. Each bathroom light meets IP44 standards. Millions of Colours - Use millions of colours of light to transform your bathroom, instantly creating a unique atmosphere. With the touch of a button, you can cast your soak in the tub surrounded in a calming pink glow, or light your bathroom in vibrant purple to make getting ready for a night out with friends even more fun. What's Required? Nothing! Hue Xamento can be installed and controlled straight out of the box using Bluetooth set up. Up to 10 Hue devices can be controlled with just bluetooth. If you are extending your existing Hue setup or you want to unlock the full Hue Suite and further features such as Out of Home control and smart speaker integration purchase a Hue Bridge (sold separately).