Bc107 Npn General Purpose Transistor 3 Channel Remote Control Kit please refer to this guide:

please refer to this guide: Upgrade the Arduino Ethernet bootloader to the latest version

voltage         : 15V

Adjustable 300w Xl4016 Dc To Dc Step Down Buck Converter Module

which will be connected to male connector soldered on any board

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Bc107 Npn General Purpose Transistor 3 Channel Remote Control Kit please refer to this guide:The BC107 is a small single NPN Transistor is age old and have been used in low noise and low signal designs. Today a lot of new transistors have come as a replacement for BC107, but still, the transistor can be found in the market for its legacy. Features And Specifications Of BC107 NPN Transistor: Small Signal NPN Transistor Current Gain (hFE): 450 (maximum) Continuous Collector current (IC) is 100mA Collector Emitter voltage (VCEO) is 45V Collector