For 120 volt outletsnRefills Sold SeparatelynCreate your perfect design and fragrance combination for a welcoming home environment. Mix and match your favorite Scent-Plug® air freshener with a Yankee Candle® Scent-Plug® fragrance refill. Use in a standard 120-volt electrical outlet with a Yankee Candle® Scent-Plug ® refill. Ensure that fragrance refill is upright when placed in the outlet. If needed, rotate the plug on the back of the base. To rotate the plug, hold the front of the air freshener upright with one hand, grasp the blades in the other hand and rotate blades 90 degrees. A convenient way to have room-filling, continuous home fragrance in multiple designs and locations. Try in the entryway or foyer to greet guests with your signature scent!