I used the same light rope, looped back and forth on both sides of my safe. For a switch though, I used a standby compass light switch for a Douglass DC-10, mounted on a "homemade" bracket......7075-T6 extrusion.....and wired it all in with some 18ga twisted pair milspec wire. When I worked for the Evil Empire, it did have its advantages. But alas, now they are gone.