Grow Light Calculator

Grow Light Calculator

Posted in Climate & Light Light

We developed the grow light calculator to provide a scientific way to analyze and compare grow lights. Our calculator uses Photosynthetic Photon Flux (PPF) along…

Calculating Grow Light Efficiency, Coverage & Harvest Potential

Posted in Climate & Light Light

Learn how to use PPF data to calculate grow light efficiency, coverage and harvest potential. We explain the science behind our grow light formulas.

Grow Light Testing Protocol

Posted in Climate & Light Light

We developed our grow light testing project to provide reliable third-party data about grow light fixtures. We are working in collaboration with Shane Torpey from…

Total PPF Usable PPF and PPFD

Grow Light Metrics Primer

Posted in Climate & Light Light

Grow Light Guide Grow Light Tests and Reviews LED Fixtures Small: Up to 6sq. ft ViparSpectra XS 1500Mars Hydro TS 1000Migro 100+ Gen4Spider Farmer SF…

How much light do you need for cannabis

How Much Light (PPF) Do You Need for Indoor Cannabis?

Posted in Grow Set-Up Guide Light

To set up an efficient home cannabis grow, it is important to determine the optimal size of your grow light. In this article, we discuss…

How to Evaluate and Compare Grow Lights for Cannabis

Posted in Grow Set-Up Guide Light

A grow light is perhaps the most important piece of equipment for growing cannabis indoors. In this article, we explain what you need to know…

Cannabis Light Cycle

Cannabis Light Cycle Fundamentals: 24/0, 18/6 and 12/12

Posted in Climate & Light Light

Which light cycle is best for vegetative growth, is an often-debated topic. Here we review the basics and explain why we prefer an 18/6 light…