Streamlight Task-Light Series is a highly compacy, reliable, durable, and powerful flashlight. Take these lights anywhere for any task. Utilizing C4 LED Technology, these Streamlight flashlights emit 3x more light than conventional LEDs. Powered by 3 AA batteries, you will have 95 lumens of light ouput for 16 hours straight. Streamlight Task Light Flashlight is truly a serious deal in a small package.