Amazon.com.au:Customer reviews: Diffusers for Essential Oils, TaoTronics 300ml Ultrasonic Humidifiers with Wood Grain, Cool Mist Aroma Diffuser with 7 Colors, Low Water Auto Shut-Off, Up to 6 Hours Timer
I can choose my favourite colour of light and set the length of time. The steam comes out quickly as long as i turn on the power.I think It is very Practical,when I added some oil,It would not get stuck like i expected.The colour of light changes time to time. There are three options of time length to choose,which is enough and well designed. It certainly makes my room smell good. It is very easy to press the buttons and leave It go.