What you need is:
1 Trapdoor.
2 Stone Bricks
1 Stone Brick Slab
1 Torch
First, you place your two stone bricks. One on top of another.
Next, you put your stone brick slab on the top half of the bottom stone brick slab.
After that, you place your trapdoor on top of the slab and put your torch on one side of the stone bricks and you are done!
By: Emily B.