Recessed Light fixture.

Manufacturer desc;

Bulb Base - Bi Pin (Not Included) : The bi pin, or 'bipin socket', is a standard from the IEC (International Electrotechnical Commission) for lamp fittings. These are used on many small incandescent light bulbs. Wattage: 64 Watts Per Bulb: 32 Number of Bulbs: 2 Voltage: 120v, 277v Dimensions:

Height: 2.75 Width: 48 (measured from furthest point left to furthest point right on fixture) Depth: 10