The Teardrop collection from Serene House introduces a new take on classic diffuser shapes while maintaining style and sophistication that sets us apart from the competition. The Zodiac Ultrasonic Aromatherapy Diffuser has a 4hr continuous - 8hr intermittent run time in addition to the 60, 90 and 120-minute timer modes. The 7 rotating or fixed LED lights add ambiance to any room. Simply add water and the essential oil of your choice, then turn it on. Measurements: (W)9cm, (H)19cm, (D)9cm - Weight: 0.57kg Colour(s): White, Oak Material(s): Ceramic