ITEM NAME:50pcs 10 Value L78 Series/LM317T TO-220 Three-Terminal Voltage Regulator Kit.Model: LM317T L7805 L7806 L7808 L7809 L7810 L7812 L7815 L7818 L7824 (5pcs Of Each Model). Processor Speed: 20. Each transistor has a clear mark so you can quickly identify the type of transistor you need.