Does luminous flux a important factor for LED plant growing lights ?

All visible light sources have an important parameter called luminous flux, and plant lights are no exception. Luminous flux is of great significance to human visual perception. On the one hand, depending on the luminous flux, the visual response of the naked eye is different. On the other hand, depending on the human visual acuity, the visual perception of the same luminous flux in the same band is not same.

Understand the relationship between the naked eye and the luminous flux, then what is the relationship between LED plant light luminous flux and plants? Let’s first look at the concept of luminous flux.

Luminous flux concept

Luminous flux is the radiant power that can be felt by the human eyes. It is the product of the radiant energy of a certain band per unit time and the relative visibility of the band, it is measured by lumens (lm). Because the human eye has different relative viewing rates for different wavelengths, even if the radiant power of different wavelengths is the same, the luminous flux is not equal. Conversely, even if the luminous flux is the same, if it is light of different wavelengths, its radiation power is not the same too.

LED plant light flux and plant growth

Luminous flux can be simply understood as the amount of light passing through given time. Just like a stream of water, it flows out, flows or flows in how much water in one second, and the luminous flux flows out, flows or flows in how much light in one second. That is to say, red light having a wavelength of 680 can reach 1000 (lm) under certain conditions, and green light having a wavelength of 520 can also reach 1000 (lm) under another condition too.

LED plant lights for plants, the most important thing is to emit the red and blue light needed by plants, or the full-spectrum plant light that simulates sunlight, to help grow high quality plants. The main factors to influence the lighting effect of LED plant lights include light quality, light intensity, and illumination time. Therefore, the same 1000 (lm) luminous flux of red and green light, one plant absorbs a lot and the other plant absorbs almost nothing. Therefore, the luminous flux cannot be completely used as an factor which may affect the light-filling effect of plants.

However, if the same wavelength red light required by plants, the greater the luminous flux, indirectly indicates that the LED plant lamp red LED chip have a large amount of light, plants can get more light, and the growth effect will be better.

In summary, for the field of planting plants with LED plant lights, the luminous flux is not the main parameter for measuring the value of LED plant growing lamps, but it can be used as a reference. If the wavelength is determined, the luminous flux is larger, the stronger light it can be provided.

Why power supply is important for LED plant growing lights ?

When we buy LED plant lights, the most concerned is always the quality of the LED chips, the ratio of the LED chips, the wattage of the LED chips etc., but ignores the power supply, however, the LED plant light power supply as a participants of the complete LED plant light have an extremely important existence.

LED plant light power supply is an electronic component that uses electric resistance and circuit connection to control voltage and current to achieve stable lamp power, it is also called LED plant light adapter. LED plant light power supply has two core functions, transformer and rectification.

Transformer feature of LED plant light power supply

We know that each LED plant lamp LED chip can withstand a small voltage, has its rated voltage, 1W LED chip voltage is 2.9 to 3.5V, 3W LED chip working voltage is 3.1 to 4.5V, household voltage is generally about 110V/220V, if the AC directly connect to the LED plant lamp LED chips, will inevitably burn out the LED chips, we need to use power supply for voltage transformation, so that the voltage acting on a single LED chip in the range of the rated voltage.

Transformer is not a simple series connection, because we all know the principle of series voltage division, but in the process of actual use, it is inevitable that individual LED plant light chips have the shortest service life, and one has the longest service life, if it is simple connect the LED chips in series, after one LED chip is damaged, all other LED chips will not be used, so the role of the power supply is to ensure that each LED plant lamp LED chips can reach the rated voltage range, each LED chips can operate independently, and the rated voltage of the red and blue LED chip is different too, so it also needs to be separately controlled by the power supply, and each LED plant light chip can work normally.

Rectification feature of LED plant light power supply

Generally, whether it is household electricity or commercial electricity, three-phase alternating current is used, and LED plant light chips and even all LED products can only use direct current, so it is necessary to use LED plant light power supply to convert alternating current into direct current, then the current can be used for LED plant lamp chips.

As with the control voltage, each lamp chip needs to be controlled separately to ensure the stability of the growing lamp when it is used.

Each LED chip has to reach its rated power to fully illuminate, to efficiently provide light for the plants, according to power (P) = voltage (U) * current (I), the power is determined by voltage and current, it is necessary to control the voltage and current to maximize the efficacy of the LED plant lamp chip to ensure the maximum efficiency of the LED plant growing lights.

LVT LED plant growing lights always equipped with high quality certfied power supply, if you are familiar with LED industry, you can also specify your favorite power supply brand before you placing an new order.

Advantages and disadvantages of LED plant growing lights

Lvt LED plant growing lights with features of waterproof and moisture-proof, and can be used freely for indoor and outdoor palnts to help and speed up the growth. Low labor intensity need, easy to operate, suitable for many vegetables, fruits, flowers. Today we would like to share its common advantages and disadvantages.
LED plant growing light advantages:
(1) Unlike fluorescent lamps, LED plant lights do not contain heavy metals. They use a green light source and are ideal for green production.
(2) LED plant lights are not fragile and will not be a problem when colliding, making them ideal for use on farms.
(3) LED plant lights have low energy consumption and can save the cost of light compensation.
(4) LED plant lights have a long service life. In theory, ordinary LED plant lights can last up to 100,000 hours.
Also, LVT LED plant growing lights with below features:
Power factor: > 97%
Total harmonic distortion: < 15%
Junction temperature: <90 °C
Wavelength: blue light 470nm; red light 630nm
(Note: any wavelength LED plant lights can be customized according to specific needs)

Of course, all things have advantages and disadvantages, LED plant light has it disadvantages too:
(1) Luminous angle: Traditional plant lighting can emit 360 degrees, while LED plant lights can’t do it, LVT LED grow light with beam angle of 45 degrees, 90 degrees and 120 degrees.
(2) Heat dissipation: Because the power of LED plant lights is relatively large, the heat generated during work is relatively large. If the heat is not discharged in time, the service life of the LED will be reduced, so the lamps need to be equipped with a fan to dissipate heat.
(3) Volume: high power LED plant lights have more built-in components, larger than traditional lamps.
(4) The market: LED plant lights as a new environmentally friendly products, the cost is still relatively high, can not be quickly accepted by the market, but also requires a certain running-in period. However, more and more farmers, gardeners are turning to LED plant growing lights as LED growing lights represent the market trends.