Surefire Flashlights are considered the best flashlights in the entire world. Most people don't know that the F.B.I., DEA, CIA, Military, Law Enforcement , Fire & Rescue personal use an assortment of these Surefire flashlights every day in the world and their lives depend on these flashlight every single day. There are many models to choose from at different prices. The pricing can go from $36 a flashlight all the way up to $6000.00 a flashlight. All models run on lithium or lithium specialty batteries which is the highest output battery device that any flashlight can possibly use. Regular battery flashlights can never compete with a lithium device no matter how technologically advanced they are. All models are virtually indestructable with hard anodized type III aerospace aluminum bodies. There are different variances in lamps which range from Xenon, LED & Incandescent Lamps. There are also self defense flashlights with serrated teeth on the ends when used in combat. I will be reviewing each model in the near future to give you a better understanding of why Surefire Flashlights are the best in the world.