How Many Plants Can Grow With Per Grow Light ?

2022 06/15

How many grow lights can be under one grow light is a frequently asked question. Because this problem is an unavoidable prerequisite for setting up an indoor grow room or tent.

Next, this article will reveal how to choose plant lights according to the planting area, or how many plants to match according to the plant lights. There is no one-size-fits-all answer to this question, as he will set it based on several different conditions

1. Need to know the plants which is going to be planted
This step is mainly to understand the required light intensity of the plant, which is generally expressed by a unit DLI (daily light integral). For details, please refer to our article.(https://fetonlight.bossgoo.com/news/how-to-decide-the-lighting-distance-of-your-led-grow-light-78726.html)

In short, 24 hours a day, plants need to have light time and dark period in different growth stages. Because the light time of a day is limited, there will be a requirement for the instantaneous light intensity of the lamp, and this requirement is PPFD.

So we first need to know the DLI and optimal photoperiod required by the plant and its various growth stages.

2. Determine canopy coverage

The canopy generally refers to the topmost part of the plant that receives light most preferentially. Why canopy coverage does not necessarily equal the canopy area of a grow tent. Because plants generally cannot occupy the entire area of the planting space during the planting process, which means that some space is wasted. There are no plants in this area, so there is no need to consider that the entire area needs to be illuminated.

3. Understand Grow Lights

This step is mainly to understand the intensity change of the grow light. You may have heard of many units about this, including PAR, PPFD, PPE, etc., but in fact, about the intensity, you only need to guide the PPFD. Usually, this PPFD is in different The hanging heights of the LEDs are not the same, there is a simple rule: the higher the hanging height, the larger the light coverage area, but the light intensity, the less the PPFD value.

Generally, different growth stages of plants require different light intensity, which can be adjusted by adjusting the hanging height. At this point, if you do not have professional measuring equipment, then ask the lamp seller to provide a PPFD chart.

By knowing the DLI required by the plant and its optimal photoperiod, you will know the minimum PPFD required by the plant, combined with the expected coverage area of the plant canopy, and whether the area covered by the control plant light and its corresponding PPFD value are in line. In this way, you can know whether the plant light you want to buy meets your needs, or decide how many plants are suitable for growing under the plant light.

Because most of the PPFD of the plant lights on the market are fixed, when you want to change plants or increase the planting area, you will have to consider changing a plant light to adapt to it, but there are not many lamps, so be careful to confirm before setting up Well the above things. Once set up there is very little room to change.

If Feton grow lights are used, the situation will be different. Because Feton grow light adopts a modular design of small wattage, it can be planted in a larger area by splicing. At the same time, its intelligent control system allows growers to adjust the light intensity and spectrum at any time. In this way, the grower has a very large adjustment space during the planting process, both in terms of the planting area and the plants planted. It is a beginner friendly but professional grow light.

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