Coast HP7TAC High Performance Focusing 251 Lumen LED Flashlight with Tactical Strobe Light output: High-251-Lumens; Low-58-Lumens, and has a strobe setting. Runtime: High-5-Hours 45 minutes; Low-10-Hours Beam distance: High-196-meters (642 -Feet); Low-66-meters (216 -Feet) Impact and water resistant aluminum casing; 5.54-Inch length 4 AAA-Cell batteries are included to allow for immediate use