Streamlight SL20X LED 120V/12V DC 20203 Flashlight: * Full size professional grade * Up to 38,000 peak beam candlepower * Run time: LEDs only - 40 hours * Emergency back-up LED (after full halogen run) - 1 hour minimum * LED rating: 13 Lumens typical (3 LEDs) * Halogen bulb: 200 lumens * High-capacity sub-C NiCd rechargeable battery * Momentary and constant on for halogen, constant on for LEDs * Length is 13.2 inches