What is the difference between AC and DC infrared heating pad?

What is the difference between AC and DC infrared heating pad? 1What is the difference between DC and AC?

When inquiring about heating element, most customers would like to specify the power either AC or DC. Then how much volt is within AC or DC? What’s the difference between AC and DC?

First of all, it must be known that AC and DC are referred to current. AC is short of alternating current while DC is that of direct current.

In alternating current (AC), the flow of electric charge periodically reverses direction. AC is the form in which electric power is delivered to businesses and residences. AC has a wide use in family life and industrial production. Residential voltage is usually 200-240v, while industrial voltage is 380v or higher. All AC volts is hazardous.

Direct current (DC) is the unidirectional flow of electric charge. Direct current is produced by sources such as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may be obtained from an alternating current supply by use of a current-switching arrangement called a rectifier, which contains electronic elements or electromechanical elements that allow current to flow only in one direction. Direct current may be made into alternating current with an inverter or a motor-generator set. DC is widely used in small electrical appliances, such as flashlight (battery), mobile phone (lithium battery), etc. Volt that is lower than 98v is DC, which is safe. But some think that 110-120v is DC as well.

The  latest version far infrared heating pad – UTK far infrared heating pad [Small pro II], is inspired by thousands of customers’ feedbacks base on their using experience. We integrate 3 improvements into this new product: First, DC power supply mode which ensure zero EMF emit, snuffing out EMF at source. Secondly, higher percentage of valid heat producing area. Last, ergonomic handheld LCD intelligent controller, allow timing setting form 0-240 minutes by 15 minutes increment and memory function. With this new heating pad, you will have a brand new experience, bring you better healing benefits.

PRODUCT FEATURESWhat is the difference between AC and DC infrared heating pad? 2                                                                                   What is the difference between AC and DC infrared heating pad? 3

Versatile Size 23.5″X16″:perfect for treating sore muscles in your back, shoulders, abdomen, legs, arms, and more.

Precise Heat Settings: Smart digital controller adjusts heat (103°F-159°F by 1°F increments) to your desired level.

Precise TIME Settings: Smart digital controller adjusts time settings from 0-240 minutes by 15 minutes increments.

Memory Function: The “MEM” button remembers your favorite heat and time settings.

10-Foot Extra-Long Cord: Makes it easier to use from the comfort of your bed or favorite chair Premium

Travel Bag: make heating pad portable to go with your trips.

For AC heating pad, when it works, input and output voltage is 110v. For DC, input  voltage is 110v but output voltage is 24v because there is a voltage adapter between the power charger and the  controller.


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UTK is engaged in a fast-growing healthy industry. Our vision is to make a healthy lifestyle accessible and affordable to everyone. UTK heating pad combines Hot Stone Therapy, Far Infrared Therapy, Negative Ions Therapy & Photon Light Therapy to reduce aching, inflamed muscles, and to relieve pain, which will give you a tremendous wellness-boosting experience.


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