Aroma diffuser spark your kid's imagination with 7 changing mood lights, each of which is adjustable between bright and dim modes, and could be set steady on. Great night light for young children scared of the dark at bedtime. Color including: green, dark blue, red, sky blue, yellow, purple, white. Oil diffuser shuts off automatically when the water runs out. Portable for home, yoga, office, spa, bedroom, baby room. Perfect gift idea for family and friends who love aromatherapy or can benefit from Aromatherapy healing. Four working modes: 60-120-180mins-on (continuous mist). Working time: 6 hours in continuous mist.