NCS1258 Features: * 35 Lumens peak output * Ambidextrous sliding on/off switch (No pressure switch) * Quick release weaver style mount Includes: * Uses 1 CR123A lithium type battery (Included) Construction: * Aluminum construction Color/Finish: * Color: Black Specifications: * 1 watt bright LED Dimensions: * Dimensions: 1.5"" H x 1"" W x 3"" D