LED lights:

 These lights look small in size and LED lights comes with various shapes and size. This light consumes lesser energy and delivers high brightness which can be the budget-friendly option for you. Due to its extraordinary specification, it is extremely popular for Lego sets lighting.

 

Expansion Boards

  These boards are used for connecting multiple components such as LED lights, cables, and battery power supply. It is crucially important to install these components because they are small in size.

AA Batteries

 These batteries are commonly used in most electronic devices. The AA battery consists of a single electrochemical cell that may be either a disposable battery or a rechargeable. The letters indicate the size of the battery. Example: 50.5mm x 14.5mm.

 

Connecting Cables 

Cables are used to link the LED light and Expansion board. This cable offers the flexibility for LED light kit installation.