Learn to make a simple and effective circuit flashlight using a LED!

Supplies

LED

AA Batteries

AA Batteries container

Switch

3 Alligator Clip Wires

Scrap Cardboard

Tape

Step 1: The Short Hand to the Batteries

First, connect an alligator clip wire to the shorter end on the LED. This wire will carry electrical energy straight from the batteries. Then connect the other end onto the black wire of the battery box.

Step 2: The Long Hand to the Switch

Connect another alligator clip wire to the longer hand of the LED. Make sure that none of the alligator clip wire touch the other, otherwise it won't work. Then connect the other end to one leg of the switch.

Step 3: Completing the Circuit

Connect the last alligator clip wire to the other leg fo the switch. Again, make sure any alligator clip wire don't come in contact with another. Then connect the other end to the red wire of the battery box.

Step 4: Put in the Batteries

Put in the batteries as shown on the bottom of the box. Do not put it in backwards.

Step 5: Cardboarding

There are many ways to cardboard this, but I want to keep it nice and simple, so I went with keeping it as small as possible. First, it taped the battery box to the edge of the cardboard. Then I added walls around it. Next, I case the alligator clip wires and tape the sides. After, I cardboard on the switch. Finally, I tape all the wires on top to make it feel comfortable to my hand. Now make sure that all the wires are still connected. Go into a dark space and test your simple flashlight!