Once you’ve decided which kind of plant grow light you want to plant, it’s time to decide how many watts of LED grow lights you need for the space you have. So LED grow lights how many watts?
1. Determine how much space you need to illuminate.
You can use any LED grow lights to grow plants if they are emitting enough light. Plants often also look for warmth to come from the light source and we know LED grow lights can provide. Firstly, should determine how much space you need to illuminate. As a rule, you want 20 to 40 watts per square foot, or as a commerical growers, you should need to get more.
2. What is watts?
Wattage is a measurement of electricity consumption, and while it’s helpful to know how much wattage your grow light uses (so you can make a more economical, energy-saving choice) it actually has nothing to do with the amount of energy your plants need to grow.
3. Plants need how much spectrum by the mol?
Instead of looking at how much wattage a grow light uses, it’s far more important to understand the grow light spectrum, which is measured in micromoles (mol). You need anywhere from 180 to 1300 mol to grow plants with grow lights, depending on how light hungry your plants are. The Cannabis family of plants are on the higher end of the spectrum: they need 800 mol to grow up to 85% of their natural potential, or 1300 ?mol to grow to 100% of their natural potential. Kitchen herbs,salads and other leave plants on the other hand only need 180-380 mol.
You can use a PAR meter to determine your grow light’s intensity in mol for light spectrum between 400-700 nanometers (nm) – in other words, for any light spectrum that’s suitable for growing plants.
4. It’s not really about wattage.
More wattage may mean more light output, but it also means more heat output, which can lead to burned plants. If your grow light has an output that’s higher than 1300 ?mol, your plants can go into what’s called photoinhibition, when plants start spending more energy on getting rid of excess light rather than growing to their fullest potential. As a result, you’ll be left with wilted, brown leaves and dying plants.
LED grow lights how many watts? Please do not focus on watts. And forget about how many watts you need to grow weed.
Instead of investing in LED grow lights with a quality, broad light spectrum, even and high PAR coverage, and effective μmol output and you’ll see happier, healthier plants in no time.