This research presents the design and implementation of an advanced IoT-based smart home lighting system, integrating enhanced security features and a user-friendly control interface. The system leverages an ESP32 microcontroller, a relay module, an LCD, and a keypad, all interconnected with cloud platforms such as Supabase for secure authentication and ThingSpeak for command relay. The system implements Role-Based Access Control (RBAC) and lightweight encryption protocols to safeguard against unauthorized access. Through testing, the system achieved an average response time of 1.2 seconds, with 97% command accuracy and 99% uptime, demonstrating its reliability. User feedback highlighted intuitive navigation, secure role management, and efficient device control, although a few delays were linked to ThingSpeak’s 15-second rate limit. The study concludes that the proposed system offers a scalable, secure, and efficient solution for smart home lighting, with recommendations for latency reduction, expanded multi-device support, and the adoption of more advanced encryption protocols in future iterations.