LED Grow Light for Hydroponics Matters in Greenhouse Farming
Hydroponic farming has become a prominent solution in modern agriculture, especially in urban areas and regions with harsh climates. Among several factors that leave impacts on plants, lighting is one of the most decisive elements for crop health and yields. The LED grow light for hydroponics provides targeted, energy-efficient lighting that supports photosynthesis and stable year-round production in greenhouses.
Lighting role
Light is the primary energy source for photosynthesis, which allows plants to convert carbon dioxide (CO₂) into nutrients. In hydroponic systems, where soil is absent, the light takes on an even more critical role of:
Encouraging strong leaf and canopy development;
Improving nutrient content and visual quality of produce; and
Enhancing resistance to diseases such as mildew or leaf mold.
However, relying solely on natural light inside greenhouses presents challenges, such as the irregular intensity during morning, evening and cloudy conditions; short daylight hours in winter months and a light reduction of 20-40 percent due to covering materials.
Besides, uneven light distribution also affects plant uniformity.
Benefits
LED technology is designed to meet the crops’ specific lighting needs in controlled environments.
The LED grow light for hydroponics offers several key advantages, such as energy savings of 40–60 percent compared to traditional lighting, a long lifespan of between 30,000 and 50,000 hours.
Thanks to the light’s low heat emission, the optimal temperature in grow spaces can be maintained. Besides, the LED grow light provides custom spectrum options (red, blue, full spectrum), suited to plant development stages.
Economic Impact
Benefit | Result |
Faster growth | 20–30% quicker development and harvest cycles |
Higher quality | Thicker, greener, and crisper leaves |
All-season farming | Reduced reliance on weather conditions |
Production stability | Ensures consistent supply for markets/export |
Guidelines for Optimal LED Installation
Light Intensity & Duration
Leafy greens like lettuce or bok choy require 150–250 µmol/m²/s
Natural light often falls short during winter → LED supplementation is necessary.
Recommended photoperiod: 12–16 hours per day.
Spectrum Recommendations
Spectrum Type | Role |
Blue (400–500 nm) | Enhances leaf and root development |
Red (600–700 nm) | Stimulates stem growth and branching |
Neutral white | Provides balanced, natural-feeling illumination |
Installation Tips
Mount the LED grow lights 20–40 cm above the plant canopy;
Use 10–12 units of 30–50W LEDs per 100 m²;
Install timers or light sensors for automation and efficiency.
Selection of LED Grow Light for Hydroponics
Select agriculture-grade LEDs, which are different from decorative or residential lights.
Verify the spectrum certification and luminous efficacy.
Check waterproof and dustproof ratings (IP65 or above).
Choose trusted manufacturers with long-term warranties and technical support.
Beside global brands such as Signify and Osram, Rang Dong, Vietnam’s leading manufacturer of LED products, provides LED grow light solutions tailored for tropical crops and climate conditions in Asia.
Should you have any questions or request a quotation of Rang Dong products, please send us an email to: export@rangdong.com.vn
Websites: en.rangdong.com.vn and vacuumflask.rangdong.com.vn.
