16A, 2-pin socket refers to a specific type of electrical socket designed to handle a maximum current of 16 amperes and has two pins (connections) for electrical plugs. 

Current Rating (16A): This indicates the maximum amount of current that the socket can handle safely without overloading. This rating helps determine the types of devices and equipment that can be powered through the socket.

Pin Configuration (2-pin): The socket has two pins to accept a two-pin plug. The specific plug and pin configuration may vary based on the region and standards followed.

Durability: The materials used in the construction of the socket are chosen to withstand exposure to varying weather conditions and potentially harsh environments.

IP Rating: While the description does not include the exact IP rating, a weatherproof socket would typically have an IP rating mentioned on the product. IP ratings indicate the socket's level of protection against solids and liquids. A common IP rating for weatherproof sockets used outdoors is IP44, which provides protection against splashes of water from all directions and solid objects larger than 1mm.

Installation: Proper installation is important for ensuring the socket's weatherproof capabilities. Follow manufacturer's instructions for installation and sealing to maintain the socket's protective features.