Westinghouse Night Light Fragrance Warmer, Round with Etched Pattern Ceramic, 1 Piece Promotional Vanilla Scented Disc Ceramic vessels nightlights are 4 inches wide x 6 inches high Night light fits standard outlet Safe to touch warming plate with LED bulb and easy on/off switch to release fragrance Photocell sensor on nightlight detects light in the room and will turn LED on/off automatically Warming plate has an automatic safety shut off after 5 hours of use