I like doughnuts, but not the Maglite kind, so I bought a Perlens off of fleabay for my old 4 D cell, non D-prefix Maglite ($19.85 with shipping). Search for it using "long range lens upgrade". It also works in my 2 & 3 D cell lights, but I've since put Fusion Showerheads in those. There is also...