About the same size as a SureFire 6P at 4 3/4”overall length the Inova X5 floodlight has five powerful patented LED lamps that are good for over 100,000 hours. Delivered as shown in Black anodized color the LED bulbs are Spotlight White. Twisting the handle will turn the lights to constant on or you can use the momentary on (using a rear momentary button like the SureFire.). These lights use 2 CR123A 3V Lithium Photo Cells that are included.