1 comprises a bezel 2 housing a lens 3 the lens comprises an outer surface 4 disposed opposite an inner surface 5 not visible a cylindrical bore 6 that extends from the outer surface 4 to the inner surface 5 and a thermal conductor 7 disposed in the bore 6 in fig1 the thermal conductor 7 comprises a heat input portion 8 and a heat dissipation portion 9 wherein the heat dissipation portion 9 comprises three fins 10 in fig2 the bezel assembly depicted in fig1 is shown to further comprise a reflector 11 wherein the reflector comprises an internal end 12 and an external opening 13 the reflector 11 has a central bore 14 at the internal end 12 through which a light source 15 may be disposed such that following assembly the light source 15 is spaced from the lens 3 and is in thermal connection with the thermal conductor 7 the bezel 2 has female threads 16 see fig3 for attachment to a flashlight body optionally the bezel assembly 1 further comprises a thermal insulator not shown disposed in the bore 6 and positioned between the lens 3 and the thermal conductor 7 the bezel 2 is preferably made of a material selected from the group consisting of plastic metal and a composite material the lens 3 is preferably made of a material selected from the group consisting of plastic glass and quartz the reflector 11 is preferably metal such as aluminum so that it also helps dissipate heat from the light source 15 the thermal conductor 7 is preferably metal selected from the group consisting of silver copper gold aluminum iron platinum and an alloy.