GoldenDRAGONPlus and OSLONSSLLED rank first in the market in the deep red range (wavelength 660nm) with a 37% efficiency rating, and commercial greenhouse operators will benefit from the high efficiency and energy efficiency of new LEDs. In a pilot project with the Danish Fionia Lighting Company, a thousand square meters of flowerbeds successfully saved 40%.
Efficient lighting allows plants to bloom
In order for plants in the greenhouse to thrive, proper light is as important as the right temperature, and light in the deep red spectrum plays a key role in plant growth because the absorption rate of chlorophyll is high in this range. . At present, both the GoldenDRAGONPlus and OSLONSSL LEDs provide this deep red light, with a typical power of 330mW at 400mA operating current, and the luminous efficiency is exceptionally high. The high-power chips of these two LEDs are based on OSRAM's thin-film technology, and with a lifespan of up to 100,000 hours, they can be operated for years without maintenance.
GoldenDRAGONPlus has a wide beam angle of 170°, which makes it ideal for use in reflective lighting systems in large planting areas; while OSLONSSL is smaller, 80° narrower beam angles can be arranged more closely . These two LEDs can also be paired with external optics, and their unique features make them ideal for special applications, such as the “multi-layer planting method†of growing lettuce in a cascading manner, because the lighting must be fine when using this stacking method. Evenly.
Arrow's Danish distribution partner, Arrow, recently completed a pilot program with Fionia Lighting, which confirms the enormous energy savings potential of LEDs in horticultural applications. In order to implement the plan, Fionia Lighting has deliberately developed a greenhouse-specific lighting system with a total of approximately 50,000 GoldenDRAGONPlusLEDs. In a cultivation area with a radius of several hundred meters, the system successfully reduced energy consumption by 40%. Thomas Rubaek of Fionia Lighting Company proudly said: “The flowers grown under LED lighting are growing at the same rate as the standard samples grown under traditional lighting, but they have more flower buds than flowers grown under traditional lighting. The price is higher. In addition, LED lighting also reduces the use of chemicals such as growth regulators."
Red and blue are especially important for plant growth. The luminescence curve of the new red LED is very consistent with the spectral sensitivity of chlorophyll. Depending on the type of plant and the growing season, the ratio of red to blue must be adjusted separately, ranging from 10% to 30%. Dr. Christoph Gärditz of Solid State Lighting Business Development at OSRAM Opto Semiconductors in Germany explained: “If the illuminance curve of the light source is compared with the spectral sensitivity curve of the plant (according to DIN 5031-10), the system efficacy of the LED is higher than the currently used high pressure nano lamp. 60% higher. In this program, the combination of deep red LED and blue LED, the energy-saving effect is also amazing."
The main function of the PWM Solar Controller is to manage the charging and discharging process between solar panels and batteries in solar power generation systems. It is a traditional charge controller that controls the charging voltage and current through pulse width modulation technology to maintain the charging state of the battery and protect the battery.
Main effect:
Charging control: PWM Solar Controller controls the charging voltage and current through pulse width modulation technology to ensure that the battery is charged at an appropriate voltage and current to prolong the service life of the battery.
Overcharge protection: The PWM Solar Controller can monitor the charging status of the battery, and when the battery is fully charged, it will automatically stop charging to avoid battery damage caused by overcharging.
Over-discharge protection: PWM Solar Controller can monitor the discharge state of the battery. When the battery power is lower than a certain level, it will automatically stop discharging to avoid battery damage caused by over-discharge.
Differences from other charge controllers:
Modulation technology: PWM Solar Controller uses pulse width modulation technology to control the charging and discharging voltage and current to maintain the charging state of the battery. In contrast, MPPT Solar Controller uses maximum power point tracking technology to adjust the output voltage and current of solar panels in real-time to achieve maximum power output.
Energy conversion efficiency: Compared with the MPPT Solar Controller, the energy conversion efficiency of the PWM Solar Controller is lower. Because the pulse width modulation technology cannot adjust the operating point of the Solar Panel in real-time, the output power of the solar panel may not be maximized.
Application Scenario: PWM Solar Controller is a traditional charge controller suitable for small-scale, low-power solar power generation systems. The MPPT Solar Controller is suitable for larger-scale, high-power solar power generation systems to improve energy utilization efficiency.
Overall, the main role of the PWM Solar Controller is to manage the charging and discharging process in the solar power generation system and protect the battery from damage. Compared with MPPT Solar Controller, it uses traditional pulse width modulation technology, and the energy conversion efficiency is lower. Suitable for small-scale, low-power solar power generation systems. The MPPT Solar Controller uses maximum power point tracking technology, which can improve the energy utilization efficiency of solar panels, and is suitable for larger-scale, high-power solar power generation systems.
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