US Pin pen

The US Pin pen is a small plug-style adapter used to connect aquarium equipment fitted with a US-style pin plug to a different socket or cord end, such as a female-to-male pin conversion. Adapters like this are handy for matching lights, pumps, or other imported equipment to the plug type already in use at home.

Its compact, pen-like shape keeps it easy to tuck behind a tank or into a cable bundle without adding much bulk. As with any electrical accessory used near water, keep connections dry and check the fit is secure before powering on the connected equipment.