Combine with your favorite ScentPlug refill (sold separately). Enjoy authentic true-to-life Yankee Candle fragrance 24/7! Such a convenient way to have room filling, continuous home fragrance in multiple designs and locations. Use only with properly functioning 230-volt electrical outlets. Use only with Yankee Candle electric home fragrance unit refills. Available in a range of fragrances in our Kilkenny store.