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Step 2 - Find the resistor
Step 3 - install the resistor into location R1
Step 4 - find the switch
Step 5 - Install the switch into location S1
Step 6 - Find the battery holder
Step 7 - Install the battery holder into location BT1
Step 8 - Find the 10mm LED
Step 9 - Install LED into location D1 with the longer lead of the LED into the square pad
Step 10 - Turn over the printed circuit. Bend the leads of the parts to hold them in place.