Power: 4W, Bucket: 210ml, suitable for rooms 15-20m2, operating time 10 hours, advanced ultrasonic technology 2.4MHZ, 7 colors led lights, two brightness, automatic shut-off without water, use only 100% natural essential oils, power supply IN AC 220 -240V 50 / 60Hz OUT DC 5V, size: 130x130x110 (mm)