Abstract: A new reflector lamp assembly exhibits an increased resistance to mechanical shock and vibration. A closure member that receives the lead wires of the light source therethrough is modified to include support legs that extend along a press seal region of the light source. The support legs provide mechanical support which increases the rigidity and durability of the assembly. Moreover, in one preferred embodiment an opening may be provided through the closure member for communication with recesses in the support legs to introduce a bonding material between the light source and the support legs.