US Patent 8061867 Lighting device

A lighting device includes: a housing, a coupling member, at least one reflector, and a light source unit, wherein the light source unit includes: a first body having a first coupling unit, a first sloping surface, and a first hinge protruding, a second body having a second coupling unit, a second sloping surface, and a second hinge protruding, a middle body having a second insertion groove and having a second connection terminal, the second connection terminal electrically connected to the first connection terminal, when the light source unit is coupled to the coupling member, and a main light emitting diode module disposed on the first sloping surface and the second sloping surface respectively.