Thermally conductive closure for electronics

A closure comprising:

• a base extending along a length between opposite first and second ends, along a width between opposite first and second sides, and along a height between a bottom and an open top, the length being larger than the width, and the width being larger than the height, the first and second ends cooperating with the first and second sides to define a periphery around the housing extending between the bottom and the open top;
• a cover that cooperates with the base to define an interior, the base being removably coupled to the base to selectively cover the open top of the base to close the interior, the cover and base being configured to environmentally seal the interior;
• a cable port disposed at the periphery of the base to provide cable access to the interior of the housing;
• a circuit board carried by the base, the circuit board including active components;
• a plurality of thermally conductive pads carried by the base at the bottom, the pads being positioned to align with at least some of the active components on the circuit board, the pads extending inwardly into the interior to contact the last some of the active components;
• and
• cooling structures disposed at an exterior surface of at least one of the base and the cover, the cooling structures increasing the surface area of the exterior surface.