Flashlight includes 1 AA battery. Experience illuminating power up to 15X brighter than standard LED technology. Illuminate up to 65 meters in high mode. Constructed with durable, aircraft-grade aluminum and IPX4 water-resistant properties to endure splashing. Compact and lightweight, this flashlight is ideal for various tasks. Features 3 light modes: high, low, and strobe light. Enjoy up to 10 hours of runtime in low mode – perfect for overnight camping, household work, emergency hurricane supplies, camping gear, and survival kits.