Micro-fine ultrasonic atomisation for water-soluble aromatic oils with blue led-illumination - atomisation with light and without light possible quiet: can also be used in the bedroom low-energy: only 12 watts highly safe operation via 24-volt low voltage suitable for rooms up to approx. 15 m² or in close proximity of the user capacity bottle: 100 ml automatic switch-off if bottle is empty includes cleaning brush for cleaning the ultrasound membrane and the water tank includes 24v mains adapter