Salesforce Field Service Lightning (FSL) offers essential tools for managing work orders, scheduling, and field workers within Salesforce CRM, necessitating installation of two managed packages: the base and lightning packages. It features a mobile application for technicians and supports various user roles, including administrators, agents, dispatchers, and mobile workers, to enhance customer service operations. Key benefits include smart scheduling, effective tracking of assets, and real-time service delivery monitoring, with a guided setup process for activation.