An 8L rice cooker in Nigeria is a large-capacity appliance ideal for feeding large families, events, or commercial use, with features including a non-stick inner pan for easy cleaning, a keep-warm function to maintain rice temperature, and durable construction like stainless steel or copper cable for longevity. These cookers often have multi-functional capabilities, allowing for more than just rice, and come with user-friendly controls like one-touch buttons, making them versatile kitchen assistants.