Quantity   Component name
1 × Boost-LED Driver from On-Semi
8 × Low-Current LEDs (Full brightness @ 2mA)
1 × High Quality SMD-Inductor from Würth Electronics
3 × Capacitors, Resistors...
1 × CR2032 Battery Holder
1 × Two-Position Switch
1 × Europe-Made PCB from Eurocircuits