A counter light fixture has a fixture housing with a downward facing reflector and lamp sockets under the reflector, and a window panel hinged to the housing for access to the lamp sockets. The fixture housing is formed as a continuous extrusion including a wiring compartment which extends the length of the housing. The extrusion has a downwardly facing concave top section joined to an upwardly facing concave rear section. The reflector is under the downwardly facing concave top section, one or more lamp sockets are mounted under the reflector, the window panel is supported between opposite end caps of the housing under the downwardly facing concave top section, and the electrical wiring is contained in the upwardly facing concave rear section. The window panel slides away from a closed condition and then swings down to an open condition.