We offer a high-quality power transistor kit containing 10 different models: BC327 PNP, BC337 NPN, BC517 NPN, BC547 NPN, BC548 NPN, BC549 NPN, BC550 NPN, BC556 PNP, BC557 PNP, BC558 PNP. Each transistor model is clearly labeled for easy identification, making it convenient to use. These transistors feature high dielectric strength, fast switching speed, high current consumption, and excellent current performance. They are an excellent choice for DIY projects. Manufactured from high-quality semiconductor material, these transistors deliver stable performance. They are often used in various applications such as electric vehicles, smart home security monitoring systems, communication transmission, and electrical power supply. The kit includes 200 transistors, with 20 pieces of each model. 100% Satisfaction: Our customers are our top priority. If you find any product issues after receiving the items, such as damage or incorrect quantity, please contact the seller immediately. We strive to provide you with the best customer service.