Designed with dual ports (receptacles) allow plug-in two electrical devices at once. Built-in Surge protector! Well built and durable adapter (no moving parts). Small lightweight and easy to carry when travelling! Standard: Type M plug. The larger 15A plug version of the old British standard BS546. CE Approved, RoHS Compliant Grounded 3-Prong plug with round pins (diameter: 1X 8.7mm, 2X 7.0mm). Max Power: 3700 Watt (max 250 Volt, 15A) COMPATIBLE COUNTRIES: The adapter Type M can be used in the following countries: SOUTH AFRICA, NAMIBIA (BOTSWANA, ZAMBIA use this Type M Plug and Type G standard. Lesotho, Mozambique and Swaziland use both Type D and Type M standard). (Larger/older electrical installations in India, England, Ireland still use this old BS546 standard). DESIGN/FEATURES: Built-in Surge Protector. The Adapter is designed with TWO electrical receptacles outlets (ports) allow you to plug-in two electrical devices at once. The main outlet at the front is a universal receptacle that accepts all types of connectors (Including: 2-Prong US "polarized", 3-Prong US grounded, European, UK, AUS and India plug standards. But not the large South African plug). The second outlet at the top of the adapter accepts 2-Prong US plugs (polarized too) and European 2-Prong plugs. USE THE ADAPTER: Please Note! The adapter does not change the Voltage. Please check the voltage standard for the travel destination and use a Voltage converter with the adapter if needed. (example, Europe use mainly 230 Volts). Many electrical devices such as AC/DC chargers for Laptops, cameras etc allow a multi range Voltage (110-240 Volts) and eliminate the need of a Voltage converter. Sometimes electrical device have a switch for either 120 or 230 Volts (remember to set back!). Please check the specifications on your equipment. Powering a 120 Volts device with 230 Volts can destroy the equipment and cause fire.