locking front trim ring 16 onto electrical component housing 14 fig4 shows a cross sectional view of a gasket 17 taken along 4 4 of fig3 for vandal resistant luminaire 10 in an expanded configuration gasket 17 has hollow interior 17 a and is placed on gasket ring 28 by having gasket ring receiving notch 42 receiving gasket ring 28 lower wall 46 of gasket 17 has a raised portion for absorbing physical shock inner wall 44 is convex or depends slightly outward to top wall 49 top wall 49 is shown as being angled upward toward outer wall 48 providing a sealing surface toward an outer portion of luminaire 10 for sealing with lens 18 top wall 49 also has a thickened shock absorbing region 49 a outer wall 48 is convex or depends inward so that when a force is placed on top wall 49 outer wall 48 folds inward providing shock absorbing material 48 a and 48 b between electrical component housing 14 and lens 18 fig5 shows the gasket of fig4 in a compressed configuration in this configuration outer wall 48 is folded inward providing two additional layers of gasket material 48 a and 48 b between electrical component housing 14 and lens 18 this inward collapsing wall provides gasket 17 with additional shock absorbing capacity when a physical shock is placed on top wall 49 fig6 shows gasket 60 for a vandal resistant luminaire 10 in an expanded configuration gasket 60 has a cross sectional configuration being substantially a mirror image of gasket 17 gasket 60 is placed on gasket ring 28 by having gasket ring receiving notch 62 receiving gasket ring 28 lower wall 66 of gasket 60 has raised area for absorbing physical shock outer wall 64 is convex and depends slightly outward.