knob 46 and switch 44 may be configured to pivot slide or other combinations known in the art without departing from the scope of the invention once the lighting assembly is positioned inside the cavity 38 it may be secured through a fastener in one embodiment the fastener is at least one lock 70 preferably a second lock 72 may be used referring to fig5 the lock 70 is mounted to the inside of base 12 and extends into the cavity 38 similarly if a second lock 72 is used it likewise is mounted to the inside of base 12 and extends into cavity 38 it will be appreciated that other constructions of fasteners may be used and a single lock or a plurality of locks may be used without departing from the scope of the invention referring to fig6 and 7 as the lighting assembly 50 slides into the cavity 38 the first lock 70 slides through an opening 63 for engagement with the shoulder 62 likewise the second lock 72 slides through the opening 65 for engagement with the bottom of shoulder 64 as discussed below the lock 70 may be mounted to either the base 12 or the lighting assembly 50 likewise the shoulder 62 may be formed in the other of the base 12 or lighting assembly 50 in either case the lock 70 is rotated about a pivot axis to engage shoulder 62 the second lock 72 formed in either the base 12 or the lighting assembly 50 may also be rotated to engage the second shoulder 64 formed in the other of the base 12 or lighting assembly 50 locks 70 72 may be shaped such that when rotated locks 70 72 engage dual shoulder portions 62 a 62 b and 64 a 64.