An HHO or Brown gas generator is an interesting and often misunderstood technology.
The Brown gas generator uses electrolysis to split water (H2O) into it´s base molecules, 2 hydrogen and 1 oxygen molecule.
This is why it is often referred to as an HHO gas generator.
Step 1: Stuff you'll need
An empty cup
Dc 5v power supply (You can also use batteries)
Two plated nails
Two rubber washers
Stripped copper wires
Step 2: Getting started
Fill the cup till there's about a centimeter of space left.
Step 3: Starting the electrolysis process
Add about one teaspoon of salt to the water.
Step 4: Starting the base
Attach your strip of cardboard across the middle using hot-glue.
Step 5: Adding the nails
Attach e the DC power to the nails. Now hot glue the nails to the cardboard
Step 6: Adding the led light
Push the led light though the rubber washer.
Now add a copper wire to the negitive lead.
Step 7: Adding the led to the build
Hot-Glue the washer to the cardboard.
Put the negitive lead into water. Now attach the postive lead to the nail.
Then add the second washer on top.
Step 8: You did it!
Now plug in your power source, You'll see a reaction starting on one of the nails, This is HHO. The other nail is oxygen.