Visual alert systems are designed to provide notifications through visual signals, such as flashing lights or screens, rather than sound. These systems are particularly useful in environments where auditory alerts may be missed or ineffective, such as in noisy workplaces or for individuals with hearing impairments. Common applications of visual alert systems include fire alarms, security systems, and medical alert devices. They can enhance safety and communication by ensuring that important information is conveyed clearly and promptly, allowing users to respond quickly to emergencies or alerts.