I was at Shot Show in Las Vegas at the end of January and picked up SF's "Tactical Products 2005 Catalog", which has not been published since 2002. It is the most informative, most detailed, most useful catalog I have seen from any manufacturer. The technical information depicted in it does not apply only to their weaponlights, but to their personal use lights using both Luxeon lamps and incandescent lamps, primary and rechargeable batteries. The photos are great. The exploded view drawings and cross section view drawings are the best I have seen from them. You can't have too much information, if you ask me.
For those who want to learn about what's behind SF products, the "Tactical Products Catalog" is for you. For those who want to see which personal use models and accessories are available, the "2005 Illumination Tools Catalog" is for you. One has three ways to acquire these catalogs. One is to call SF and make your request. Two is to go to the link below and fill in the boxes. Three is to download to your hard drive a catalog in the pdf file format. Go here for these options.....
SureFire "free catalogs" request page
I am totally impressed by SF's 2005 catalogs, and will keep them for reference for many years to come.