Reflector lamps are the very common cone-shaped light bulbs most typically used in "recessed can" light fixtures (recessed cans are low-cost light fixtures that mount flush with a ceiling such that the socket and bulb are recessed into the ceiling. They are very common in residential and commercial construction.). The cone is lined with a reflective coating to direct the light. "Bulged" reflector (BR) lamps are specific types of reflector lamps.