Quantity   Component name
4 × 2N2222 Discrete Semiconductors / Transistors, MOSFETs, FETs, IGBTs
4 × 2. 330 Ω Resistors
4 × 3. 5 mm LEDs
1 × 4. DC Power Supply or Battery.
1 × 5. Solderless Breadboard
1 × 7. Plastic Container or Cup