CB-400 COBRA-4 features a dual-head blue and white light LED flashlight, which enables leak checking and internal component inspection into hard-to-reach areas. Blue-light LED is for fluorescent leak detection, while the white-light LED is for component inspection. Press-fit coupler permits quick and easy attachment of the flashlight to the borescope. Includes clip-on, angled inspection mirror for detecting flaws normally hidden from view.