Coffee Pluggable Fragrance WarmerLife Begins After Coffee! The Coffee Pluggable Fragrance Warmer will bring a delightful ambiance to any home. With an elegant black and white design, this warmer is ideal for above counter outlets in small rooms or spaces. It's the safest way to use fragrance in your home. Pluggable Fragrance Warmers are ideal for above counter outlets in small rooms and spaces. The soft glow of the halogen bulb creates the ambiance and fragrance of a lit candle,