ThruNite Neutron2A v2 CW Handheld LED Flashlight Max 800 Lumen with Extension Tube Run Multiple modes available: Firefly, Low, Medium, High, and Turbo. Its max output can reach up to 730 lumens. The compact design of Neutron 2A fits comfortably in your pocket, backpack, or anywhere else you keep your light. The light can be driven economically by one or two AA batteries. The extention tube makes it versatile for many uses. High Lumen-730 Lumens! Readily-accessible Economical Power Source-AA Batteries! Affordable Price-$55.95! Constructed from aerospace grade aluminum with military grade HAIII hard-anodized finish, Neutron 2A V2 is sure to last you a long time.