The SRI Bat Light is in a category of it’s own. Constructed of aviation grade aluminum, and producing 2,800 lumens on high, this light packs a mean punch. We have integrated (5) different modes (high, medium, low, strobe, sos), as well as a fully internal rechargeable system, allowing you to never have to replace these batteries. This unit is perfect to keep in a vehicle, work equipment, shop, etc, seeing that it not only functions as a light, but also a self-defense tool. This also makes a fantastic light for law enforcement, fire, and search and rescue teams.