Things You'll Need
Instructions
Connect the end of the red colored wire on the flashing LED to the ̶0;Positive̶1; terminal of the battery holder. Secure the wire by soldering with a soldering iron or tightening a screw with the screwdriver.
Attach the black colored wire to the toggle switch. Secure the wire on the switch by tightening a screw or by soldering with the soldering iron.
Connect one end of the black electrical wire to the switch. Secure by soldering or tightening a screw.
Attach the other end of the black electrical wire to the ̶0;Negative̶1; terminal of the battery holder. Secure by soldering or by tightening a screw.
Insert a battery into the battery holder. Flip the switch to the ̶0;On̶1; position to see the LED light up and flash.