to achieve the purpose of temperature control and safety protection. The common type electric blanket without signal line electric heating element is generally equipped with two types of temperature control elements to realize temperature control: one is overheating safety thermostat, about 8-9 per bed electric blanket, which is connected in series on the electric heating element to play the role of safety protection; The other is the thermostat controller, which is located at the head of the bed or at the hand to play the role of temperature adjustment. The electric blanket with electric heating element with signal line only needs a thermostat controller. Safety Overheating Newer electric blankets have a shutoff mechanism to prevent the blanket from overheating or catching fire. Older blankets (prior to about 2001) may not have a shut-off mechanism; users run the risk of overheating. Older blankets are considered fire hazards. Some electric blankets work on relatively low voltage (12 to 24 volts), including those that plug in to ordinary household electrical outlets. In the US, such blankets are sold by Soft Heat, Serta, and Select Comfort. Such blankets also include 12-volt blankets designed for in-car use; they tend to shut off automatically every 45 minutes or so. Old or damaged blankets are a concern of fire safety officials, due to the combination of heat, electricity, the abundance of flammable bedding material, and a sleeping occupant. In the United Kingdom in 2011, it was estimated that 5,000 fires per year were caused by faulty electric blankets. Electric blankets also present a burn risk to those who cannot feel pain, such as those with diabetic peripheral neuropathy, or who are unable to react to it, such as small children, quadriplegics, and the elderly. Use There are more than 500 fires each year from electric blankets or mattress heaters alone. When buying an electric blanket, choose a blanket that meets the UL Standard in the US market or a BEAB Approved safety mark. Checking an electric blanket prior to use will also help ensure safety. Do not use if: There is discoloration on the fabric The fabric is frayed or heavily worn There are visible wires poking through the fabric There is an odd smell emanating from the blanket The blanket is over 10 years old In order to prevent damage or harm: Do not use around water or wet areas Do not crease or fold the