- Package: 10 pieces of glass fuse tubes in common sizes, including 5x20 mm and 6x30 mm, ready for use in many electronics projects. - Ratings: 250V maximum. Current ratings range from 0.5A to 20A (examples: 1A, 2A, 3A, 3.15A, 4A, 5A, 6A, 7A, 8A, 10A, 12A, 15A, 20A). The set includes a 5x20 mm fuse rated at 10A. - Form and compatibility: Glass tube with metal end caps; clear body lets you see if the element has blown. Fits standard 5x20 mm fuse holders. - Why it helps: Provides reliable overcurrent protection, allows quick replacement, and supports wide compatibility across devices and power supplies. - Use scenarios: Replacing fuses in power adapters and DC power supplies; protecting LED drivers and consumer electronics; prototyping or automotive 12V circuits and other hobby electronics. - How to choose: Pick a rating just above your normal operating current and ensure the voltage rating matches or exceeds your supply. Use the 5x20 mm 10A as a common, readily available option for higher-limit protection.