1、There is a label on box so you can easily identify which type of transistor you need. 2、All transistors are well packed and assorted in a transparent box for convenient storage. 3、There are a total of 72 glass fuses and 10 accessories in this collection, which can meet your basic needs. 4、Packed in a clear storage box with a lock switch, it can protect the safety of the fuse and will not overflow anywhere. 5、Made of high-quality metal material, corrosion resistance, good conductivity, and glass cover for better protection. Small size, compact structure, easy to carry. Condition: 100% Brand New Item Type: Fuse Current: 0.5A~30A Model: 0.5A, 1A, 2A, 3A, 5A, 10A, 15A, 20A, 30A Color: Transparent Fuse Size: Approx. 6 x 30 mm / 0.2 x 1.2 in Instruction: 2. Glass fuses are mainly used to protect circuits from overload and short circuits, and can also be used to protect semiconductor objects. 4. A total of 72 fuses, equipped with 0.5A / 1A / 2A / 3A / 5A / 10A / 15A / 20A / 30A glass fuses, these glass tube fuses are packaged in a transparent plastic box to maintain different amperage values. 5. Scope of application: suitable for household appliances, electronic appliances, automobiles, meters, electronic toys, etc. Working Principle: When the circuit is faulty or abnormal, as the current rises and the current in the circuit increases, it may damage the equipment or some important valuable parts, and even burning the circuit may cause a fire. If the circuit fuse is placed correctly, the fuse will rise to a certain height and temperature when the current is abnormal, thereby playing a certain role in the safe operation of the protection circuit. 10 x Fuse Holder 8 x 0.5A Fuse 8 x 1A Fuse 8 x 2A Fuse 8 x 3A Fuse 8 x 5A Fuse 8 x 10A Fuse 8 x 15A Fuse 8 x 20A Fuse 8 x 30A Fuse