What size of LED Grow Lights do you need?

The most important equipment in the growth greenhouse is the lights. Why? Just plant food, you need to provide plants with high-quality food so that they can produce high-quality yields. Due to its energy efficiency, durability and optical spectrum, LED growth lights are now considered by most growers to be the best choice for lighting.

To determine the size of the LED grow light, first of all, you need to calculate the exact size of your planting grow space.

1. Size of growth space

When growing marijuana, a good experience is to use at least 50 watts of LED grow lights per square foot of planting growing space.

We want to flood our plants with light so that they have enough energy to produce powerful big buds.

Therefore, we need to calculate the square foot (length x width) of the growth space.

2. How many plants can be planted?

Generally speaking, each cannabis plant growing needs at least 1 square foot of growth space.

After germination, many growers like to put a plant in a large 5-gallon planting bag about 1 square foot in diameter, and then the marijuana plant will remain in the pot until it blooms.

This allows plants to grow big and strong without being hindered by other plants or around tents. This avoids the frequent transfer of plants, which can put a lot of pressure on plants.

3. Make sure your canopy is covered

Now, it is also important to understand that most LED plant growth lights usually cover only about 1-6 plants.

If you want to plant more, you need to buy multiple lights hanging side by side to cover each plant and get the same light.

Note: the above values are the reference values during flowering. During the seedling and growth period, you need to reduce the power as appropriate

4.Understanding par output right.

Par is simply a part of measuring the spectral parameters used by plants for photosynthesis, so this is an important issue. The higher the par output of the plant led grow lights , the more lights the plant receives.

The following just be used as a reference:

Seeding : 200~400umol/m2/s

Veg: 400~600umol/m2/s

Flowering: 600~800umol/m2/s