The Power-over-Ethernet (PoE) Ring Light is the latest innovation from Imperx to simplify installation with minimal cabling. Using a patent-pending design, power is derived from a PoE arrangement in which power and data are passed through to an adjoining PoE camera. While the PoE Ring Light can be used with any PoE camera, the Imperx Bobcat cameras have a built-in pulse generator function that can be used to provide pwm intensity control.