EcoGecko Magic Ball -Light Up Air Washer & Revitalizer, Aroma Oil Diffuser with 10ML Lavender Oil, Silver Size: Diameter: 7 inches, Height: 7 inches Low cost. Just use tap water. Only uses 3 watts of power (this is less than small light bulbs) Easy to clean. Safe and reliable. LED lighting provides luminance when turned on 18 LED lights and has a control switch to adjust color and time span Add a few drops of fragrant aroma oils to water and it will work as an air freshener (included)