The Streamlight ProTac 2L-X USB flashlight features a powerful 500 lumens output, making it suitable for various lighting needs. It operates on a rechargeable USB battery or two CR123A lithium batteries, providing flexibility in power options. This model includes a USB cord for convenient charging.Key FeaturesMulti-Fuel Capability: Can utilize a rechargeable lithium battery or two CR123A batteries.TEN-TAP Programming: Allows selection of three different operating programs.C4 White LED: Provides high brightness with a maximum output of 500 lumens and a low setting of 40 lumens.Aircraft Aluminum Body: Constructed from durable aircraft-grade aluminum for enhanced durability.One-Handed Operation: Features momentary, variable intensity, or strobe mode for ease of use.