LP490BL is powerful with 650 bright lumens on high mode and 350 lumens on low mode. This light has 3-modes so you can determine the level of brightness: high, low and strobe. It features LUXPRO Enhanced Optics to produce an even and crisp light spread for optimal, efficient lighting. LuxPro uses the best electronics to maximize battery life and flashlight output. The LP490 runs on 3 D cell batteries, not included.