Quantity   Component name
1 × 1W white LED (or 3 white/blue/pink LEDs if you prefer, 3 or 5mm diameter)
3 × BS170 (N-MOSFET) (2N7000 is possible but reverse the pins) Discrete Semiconductors / Diode-Transistor Modules
3 × 1M resistors
3 × 330K resistors
3 × 1uF capacitors
1 × LDR (photoresistor)
1 × PCB
1 × 3V battery coupler (with wires)
1 × battery (1× 3V lithium coin or 2× alcaline cells)