Super efficient grow light

Mike sent in another one of his projects. This time it’s a super efficient grow light for your plants. As usual, Mike has included all the schematics, parts list and PCB layouts to make your own. If you want to skip the fun part, you can also purchase one completed.

A grow light made from red and blue LEDs being pulsed. This light fits inside a Altoids container and requires less than 1.1W of energy to grow a 6″x6″x6″ space. Lights can be chained to grow more plants. Total lumens = 111. Plants need primarily red (680nm) light to grow and a small amount of blue (440nm) light. By pulsing the LEDs at 720Hz or higher the plant can achieve maximum growth with a minimal amount of energy.

How to make a Super efficient grow light