LED Grow Light using Joule Thief Battery Power in a Wick Gardening Container for CHEAP!

Step 5 Focus! Daniel-san...

In this step, we are going to focus the light that the LEDs are giving off. To do this, I cut off the top 1 inch of a 1 liter bottle and the square shape of the board made it so that it would just sit on the top, while the LEDs were inside. I taped it down with a little bit of electrical tape. To try to block the light from escaping, I taped aluminum foil to the INSIDE of the sidewalls to reflect the light inward.