PRODUCT FEATURES: Heating type: alloy heating wires Fast warm-up: reach the highest temperature in 10-15 minuntes. Thermostatic temperature: maintain at 40~55°C (104 ~ 131°F), varied in 5°C (9°F) due to the ambient temperature and humidity. Premium material: built of T304 stainless steel structure Installation: wall-mounted; can be plugged in or hard wired. Manual control: on/off switch available on the side Voltage: 120V/60Hz Safety: fully ETL certified product; insures water-proof and insulated. Thermostatic temperature prevent skin scalding. This product and the component have received ETL certification, which attests to their quality and reliability.