Why is it always difficult and time-consuming to make decisions when purchasing Grow Lights? Because many people will tell us that we need to know many factors before buying: light intensity, consistency, spectrum, professional terms such as PPF, PPE, PPFD, Wattage, etc. With so many nouns and concepts, it is easy to confuse people. 
In fact, to make a wise choice, you do not need to fully understand these terms. The following will simplify everything for you. You only need to do simple calculations according to the formula to get the best and most suitable product.
Just focus on PPFD, don't care about PPE and PPF
Many people will say that PPE means the efficiency of the lamp and PPF means the amount of light in the fixture, which is true but has no practical meaning. This is because light is what the plant can actually receive, and PPFD is the only indicator of how much light the plant canopy can receive. The PPFD value is not completely controlled by the PPF. So regarding the amount of light, we only need to focus on the PPFD value.
On the other hand, regarding energy efficiency: the actual electricity consumption of a light fixture is only related to its wattage. So when it comes to efficiency, we should pay more attention to PPFD/W, which represents the real efficiency of lamps and lanterns, and indicates the cost of long-term use. The smaller the value, the less electricity will be consumed during long-term use.
Is Full Spectrum the Best?
Regarding spectrum, why do people say they need full spectrum? Because each plant and the optimal light formula required for each growth stage is different, the full spectrum is like a buffet, allowing plants to choose. But this buffet style, because it is too free, can not get the best harvest.
The best way to do this is to manually select the most suitable spectrum for the plant, so that control can enhance the certainty of the desired outcome. At the same time, many scientific experiments have shown that controlling the spectrum can control the characteristics of plants, whether it is morphology or the flavor of the harvest.
Therefore, it is best to choose a tunable full spectrum.
By the way, full spectrum means that the simulated sunlight contains all the mixed light of different wavelengths. It is impossible for actual artificial lighting to restore sunlight 100%, but plants actually only need the following 5 kinds of light: red, far red, UVA, deep red, blue green
So about the spectrum, choose a tunable broadband spectrum containing the above-mentioned light wavelengths, why is it broadband light? Because of the color of the light, the color of the mixed light containing these lights is usually white, not red, blue or purple, which is conducive to observing plants during the planting process and detecting pests and diseases in time.
According to the above concepts, it can be summarized into such a set of selection methods:
1. Know the minimum and maximum PPFD requirements of the plant, and choose a Plant Light that meets the interval
2. Judging the benefit through the cost of PPFD/W
3. Optimal screening through adjustable full spectrum.
Feton smart grow light, a collection of full-spectrum integrated lamp beads and a full-intelligent control system. Not only can the spectral intensity control customization be realized, but also the lighting strategy can be automatically executed. Use advanced technology to bring convenience to growers and increase yields.
More info about led growl light: https://www.ultraplantled.com/full-spectrum-grow-light/
