LEDs The Keys To Your Growing Future

I now have the knowledge and have learned from all the problems that my friends and I have had while growing over the years, this will save you time and money 100%.John Berfelo

This book covers a new era of cannabis cultivation with LEDs:



The newest lighting technologies

Maximize yield Increase potency

New content and updates

Vapor Pressure Deficit

Understand how light affects your growing journey

For more info www.johnberfelo.com