Speedlight G2 3V 1 INCH, Output- 378 Lumen LED, 2nd Gen Tacticl Flashlight by FAB *Ask for the $10 authentication key-chain flashlight & laser* 1 inch in Diameter. Overall Length - 3.1 inch. Output- 378 Lumen LED Shipped from Israel. Delivery is about 14 business days. Powered by Two CR123 Batteries Provides Approximately 1 hrs.of Constant Runtime