How do you choose a suitable commercial LED greenhouse grow light?

In modern greenhouse farming, crop development depends critically on extra lighting. Apart from raising yields, reasonable illumination helps to improve crop quality, shorten growing cycles, and even lower energy use. As LED technology matures, more and more farmers are starting to choose LED Commercial greenhouse lighting solutions to replace conventional high-pressure sodium lamps (HPS) or metal halide lamps (MH). What then has to be taken into account while selecting an appropriate Commercial LED greenhouse grow light?

 

 

As LED technology matures, more and more farmers are starting to choose LED Commercial greenhouse lighting solutions to replace conventional high-pressure sodium lamps (HPS) or metal halide lamps (MH).

 

There is usually a certain amount of natural light, but crops may not get enough light due to region, season, and weather. Therefore, when choosing a suitable supplementary light, the following key questions need to be clarified:

1) The target crop is (tomatoes, strawberries, lettuce, marijuana, etc.)

2) The natural light intensity now in use?

3) How much should PPFD (photosynthetic photon flux density, unit: μmol/m²/s) be supplemented with?

4) What do the lamp's investment return cycle and energy use reflect?

 

Various crops have varying light needs For instance:

1) Leafy vegetables (like lettuce and spinach): 150–300 μmol/m²/s

2) Tomatoes and cucumbers among fruits and vegetables: 300–600 μmol/m²/s

3) Highlight demand crops, such as cannabis: 600–1000+ μmol/m²/s

 

 

One of the main determinants of plant development quality is the spectrum. The efficiency of photosynthesis can be raised via rational and scientific spectrum design. Generally speaking, the range of additional greenhouse lighting should satisfy the following guidelines:

1) Blue light (400–500 nm) stimulates leaf development, which is perfect for seedlings.

2) Red light (600–700 nm), especially for fruit and vegetable crops, encourages flowering and fruit development.

3) Plants can grow stems and increase photosynthetic efficiency using far red light (700–750 nm).

Applied to various crops, full-spectrum LED solutions replicate natural light, enhancing productivity and quality.

 

Current greenhouse LED lighting solutions mostly use the full or tailored spectrum to fulfil various planting requirements. For instance, while in tomato farming, far-red light must be supplied to encourage fruit ripening; in greenhouse cannabis growing, a particular ratio of red and blue light combination may be necessary.

 

 

Measurement of LED performance depends much on the photon efficiency (PPE, photosynthetic photon efficiency, unit: μmol/J) of lights. Modern high-efficiency LED fill lights can reach 2.6-3.5 μmol/J, which is 40%-50% more energy-saving than conventional HPS lamps (1.5-2.0 μmol/J).

 

Choosing high-efficiency LED supplemental lights has some advantages.

A. Cut energy consumption: lower electricity costs and boost planting profits. LED lights can save 40% to 50% of the power consumed compared to conventional HPS lamps, drastically lowering running expenses.

B. While LED lights have reduced heat output, which not only helps minimize the burden on the greenhouse cooling system but also helps avoid the effect of high temperatures on crop development, HPS lamps emit a lot of heat when converting electrical energy.

C. While HPS lamps often need to be replaced every 10,000–15,000 hours, considerably lowering maintenance and replacement costs, LED lights typically have a lifespan of more than 50,000 hours.

D. LED lamps usually use excellent optical lens technology, guaranteeing consistent light distribution, lower hot spots, and increased crop growth uniformity.

E. Precise spectrum control: LED technology helps to alter spectrum ratios for various crop development phases, bringing the light more in line with plant needs and enhancing photosynthesis efficiency.

 

 

Different greenhouse designs and crop layouts require different lamp installation solutions to guarantee consistent light coverage.
1) Height and beam angle:
A. If the lamp is mounted higher-between 3 and 5 metres-a 60° focusing lens will help increase light penetration.
B. You can use a 120° wide-angle lens to provide consistent coverage if installed lower- between two and three meters.

 

2) Design with uniformity
A computer will help you replicate light dispersion to prevent hot spots and shadows.
B. Make sure every crop gets constant light intensity using a grid installation design.

 

 

The high humidity of the greenhouse environment makes the protection degree and heat dissipation design of the light extremely important. Elite expert greenhouse grow lights must include these qualities:

1) The IP65 or IP66 waterproof and dustproof grade guarantees long-term reliable performance in high-humidity surroundings.

2) Aluminum heat dissipation structure to prevent too high temperatures from influencing LED service life.

3) Passive heat dissipation design devoid of fans to cut maintenance expenses

 

 

Usually featuring clever management features to maximise energy utilisation and raise planting efficiency, modern greenhouse lighting systems.
1) A dimming function (0–10V/DALI control) allows the light intensity to be automatically changed based on sunny circumstances.
2) The linkage of light sensors guarantees that crops receive optimal light all day.
3) Data analysis and remote control to enable producers to maximise their plans of action.
4) Intelligent timer switches can establish the optimal switch time based on the crop development cycle to lower human operation mistakes.
5) Integration with the environmental control system to guarantee that crops have the ideal growth environment, using links with the greenhouse's temperature, humidity, CO₂, and ventilation systems.

 

Mobile apps for remote management let growers change light settings anywhere and anytime, enhancing the simplicity of planting operations.

 

 

Apart from considering performance, LED greenhouse grow lights require calculations of the return on investment cycle. Although LED bulbs have a greater starting cost, their great efficiency and lifetime help to greatly lower running expenses over time.

 

As an illustration, substituting a 1000W HPS bulb for a 600W LED supplemental light:

1) Energy savings: One can save 40%-50% of annual electricity costs.

2) Longer life: LEDs can be used for five to seven years, while HPS must be changed every one to one and a half years.

3) Usually, two to three years allow one to repay the cost of ROI (return on investment).

 

 

 

When selecting a greenhouse supplemental grow lamp, consider spectrum, light efficiency, installation technique, durability, intelligent management, and economy. LED Commercial greenhouse lighting is an excellent option for contemporary farming and dramatically lowers energy consumption, raises producers' profitability, and increases crop production and quality.

 

The advanced LED technology in JT Grow Light's Greenhouse supplementary grow light offers professional lighting solutions with excellent light efficiency, full spectrum, and intelligent control. Our commercial top-grow light increases crop development efficiency and satisfies greenhouse planting requirements. Please get in touch with us for further information if you seek the best greenhouse LED lighting solutions!

 

Learn More information:

https://www.china-growlight.com/led-grow-lights/led-grow-lights-for-weed/greenhouse-supplemental-grow-light.html