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A 20A DP wall switch generally contains two independent switching units: • The first pole disconnects the live wire (Live). • The second pole disconnects the neutral wire (Neutral). Both poles operate simultaneously, meaning they disconnect or connect simultaneously. The internal structure can be summarized as: Live wire: L IN → L OUT Neutral wire: N IN → N OUT

Common home wall switches on the market come in two main current ratings: • 10A home wall switch • 16A home wall switch These two ratings are the most common designs in current home environments and form the basis for most standard lighting and power control.

A 16A wall switch is ideal for home use. A 16A wall switch is not only suitable for home use, but also offers significant advantages in safety, durability, and compatibility. Its advantages include: • Meeting the needs of high-power devices • More stable operation and less heat generation etc.

Rated current is the most direct difference between the two. A 10A wall switch has a rated current of 10A and a maximum power handling capacity of 2200W. A 16A wall switch has a rated current of 16A and a maximum power capacity of 3520W.

For installation and use within the UK: UK 3-prong outlets are better (and the only legal choice). Reasons include: • Compliant with BS 1363 national standard • Higher safety level • More robust plug and fuse system • Capable of handling typical high-power UK appliances • The only legally permitted standard in the UK.

A UK 13A 5-hole socket typically refers to a socket with five prongs, but whose power supply is based on the UK 13A (ampere) standard. While the design of 5-hole sockets varies slightly between manufacturers and regions, the most typical forms include: • British three-prong (L, N, E) • An additional two-prong socket (usually used to support European standard or other round-pin plugs)