A retrofit assembly has a pan and a light emitting diode (LED) light source. The pan has a base extending along a longitudinal axis. The base is defined by a plurality of segments, including a seat, first and second legs, a first foot, a second foot, and retaining walls. The seat extends in a first plane. The first and second legs angle laterally and vertically away from opposite sides of the seat. The first foot extends away from the first leg within a second plane offset from and parallel to the first plane. The second foot extends away from the second leg within a third plane offset from and parallel to the first plane. The retaining walls extend vertically away from each of the first and second feet toward the first plane. The LED light source supports a plurality of LEDs coupled to the base.