-One is because the degree of safety is different -The second is raw materials (including heating cable, temperature control switch, power cable, interface plug, blanket material quality level is not the same, such as the hair hot wire is divided into national standard double helix and non-standard single helix) How does an electric blanket work? Can it be used as a quilt cover? - No, the electric blanket should be laid flat under the bed sheet. (If there are mattresses or cotton wool under the bed sheet, the electric blanket should be laid on top of them.) When powered on, the switch should not be folded Are electric blankets safe? Will there be electricity leakage? A fire? -The electric blanket adopts the safe double helix thermal hot wire, the product is safe and reliable, no fire, no leakage, in line with the national safety standards, please rest assured to buy and use. Is the electric blanket washable? -Electric blanket should not be washed with water. If the electric blanket is dirty by accident, the electric blanket should be laid flat on the plane and brushed clean with a soft brush, or the dirty surface should be gently wiped with diluted detergent, and then washed with clean water. The electric drying is not allowed, and the insolation is prohibited. This product is double helix hot wire, there are 2 groups of metal wire, the inner layer is hot wire, the other layer is temperature sensing wire, this kind of protection greatly improves the safety of the product. Single helix only hot wire, no protection, poor safety. It is safe to use this electric blanket because it features 12H automatic power-off and multiple circuit protection including over-heating, short-circuit and over-voltage protection. This electric blanket use 9-speed single(S/M)/double(L/XL) control thermoregulation and fast heating, which can keep your body warmer in winter and bring you comfortable sleep. It is constructed of synthetic fiber material. This electric blanket also has the functions of dehumidification and mites removal, which is multifunctional. There are three sizes for you to choose from. This electric blanket is suitable for home, dormitory, outdoor and so on. Item Name: Electric Blanket Material: Synthetic Fiber Style: A: S Intelligent Single Control, B: M Intelligent Single Control, C: L Intelligent Double Control, D: XL Intelligent Double Control Plug Type: UK Plug Voltage: 110V Automatic Power Outage: 12H Rated Power: S/M/L/XL: 60/90/145/180W Features: Safe, Automatic Power-off, Single/Double-control Thermostat Size Details: S-L: 150cm/59.06", W: 80cm/31.5"(Approx.) M-L: 150cm/59.06", W: 120cm/47.24"(Approx.) L-L: 180cm/70.87", W: 150cm/59.06"(Approx.) XL-XL:200cm/78.74", W: 180cm/70.87"(Approx.) Package Includes: 1 x Electric Blanket(UK Plug)