Light is surplus used condition.
Switch is new.
The Insight Technologies M3X/SU-233 Weapon Light was engineered to military specifications using proven technology fielded by U.S. Special Operations forces. Its compact, lightweight construction provides powerful illumination without adding unnecessary bulk or negatively affecting weapon handling.
The M3X produces up to 125 lumens with approximately one hour of runtime from lithium batteries. A built-in Shock Suppression System protects the xenon-filled incandescent lamp from recoil and impact, while its rugged MIL-SPEC construction provides an airtight seal for dependable performance in harsh environments, including exposure to sand, moisture, and submersion in water up to 66 feet.
Insight’s patented Slide-Lock mounting system allows the M3X to be installed or removed from compatible weapon rails in seconds without tools. The Rail-Grabber interface provides a secure, repeatable mounting surface for reliable positioning during use.

