Check the listing for details. Ridgid SystemSafe #UVL-150 Ultraviolet Leak Detection Lamp. Condition: Used. Listed at 69.95 USD. Lamp works but the lightbulb in it doesn't appear to be UV. It is marked b-150 at the base of it. The Ridgid SystemSafe #UVL-150 Ultraviolet Leak Detection Lamp is a specialized tool designed for detecting gas leaks in industrial settings. With the brand Ridgid known for its quality and reliability, this ultraviolet leak detection lamp provides a highly sensitive method for detecting invisible leaks in gases that would otherwise be difficult to locate. This system is essential for ensuring safety and efficiency in various industrial applications where gas leaks can have serious consequences.