The FF200-0CW-028B is a single-chip super bright LED bulb from the FF200 series, designed to directly replace 24/28V incandescent lamps such as the 327, 376, and 387 models. It features a T1¾ midget flange base with a 0.29-inch outer diameter and a maximum overall length of 0.65 inches. This cool white LED operates on 24/28 VDC and features bipolar polarity for easy installation. As a solid-state, energy-efficient alternative, it is highly resistant to shock and vibration, making it suitable for demanding applications like industrial controls, avionics, and general indicators.