WarmlyYours Rectangle Mirror Defogger Pad with Self-Adhesive Backing, Hardwired, 24" x 32" (120V) FROG-FREE MIRROR: Pre-attached power leads can form a hardwired connection to your bathroom's 120V lighting fixture, draws only a minimal amount of energy and operates at a constant, regulated temperature of 104F and it only costs pennies a month to run EASY TO INSTALL: The self-adhesive backing of the mat allows for direct application to the back of any of your existing bathroom wall-hung mirrors in just minutes and uses heat to keep fog from forming on the mirrors surface VARIETY OF SHAPES AND SIZES: Available in rectangular, circular and oval to fit most mirror types and shapes, this rectangle shaped model is 24" x 32" SIMPLE AND COST-EFFECTIVE: This anti-fog heating element transmits gentle warmth across the mirror's surface, preventing the steam's moisture from collecting on the colder mirror surface while you bathe or shower (not suitable for installation in the shower) 24/7 TECHNICAL ASSISTANCE: The WarmlyYours troubleshooting team is available 24/7 to provide technical assistance or support at 800-875-5285