For your attention: Please note that as a beverage warmer instead of a hot plate with much higher power, our product is not made for cooking yet absolutely capable of keeping your beverage warm enough for drinking as long as the working condition is correct (Cups must have a good contact with the surface). Meanwhile, this COSORI warmer is totally different from the cheap ones! PI heating film (stable, evenly heating and low electromagnetic radiation) vs cheap traditional heat coil; Aluminum alloy material vs Polycarbonate; Fine workmanship vs Rough one; If you are looking for a quality beverage warmer, COSORI would be definitely the perfect choice! The product voltage arrange is 110V.