The Streamlight Tailcap Switch Assembly for the Stylus Pro and MicroStream provides a reliable, durable replacement part that enhances the functionality and longevity of your flashlight, compatible with the PolyTac, PolyTac LED, and PolyTac LED HP series lights to ensure dependable performance in everyday tasks, outdoor adventures, or emergency situations. Crafted with precision, this black tailcap assembly is designed for easy installation and seamless operation, making it a practical upgrade for professionals and enthusiasts who rely on consistent light output. As part of the Streamlight PolyTac Series Accessories, it addresses worn or damaged components, helping maintain optimal performance while extending the life of your flashlight. The tailcap switch offers a straightforward way to restore reliability and efficiency, ensuring that your optics and lights accessories work together harmoniously. Whether you are replacing a worn part or upgrading your current setup, this tailcap switch assembly meets the high standards of quality and performance Streamlight is known for, delivering continued functionality and peace of mind when you need it most.