"Waiting for sunny days to conduct experiments", "worrying about inaccurate data", "fearing high maintenance costs" - In fields such as photovoltaic research and development, aerospace testing, scientific research experiments, and agricultural planting, the uncontrollability of natural light and the shortcomings of traditional light testing equipment were once the "roadblocks" restricting innovation. For 20 years, Saifan Optoelectronics has been deeply engaged in the optoelectronics field. With its independently developed LED solar simulator, it has brought "controllable light" to various industries with its hard-core capabilities of "precisely replicating natural light, energy conservation, cost reduction, long-lasting durability and maintenance-free, and customized adaptation to all scenarios", thus bidding farewell to innovation being "dependent on the weather".
Photovoltaic R&D: Precise and efficient, accelerating breakthroughs in battery efficiency
When a certain photovoltaic enterprise was developing perovskite/silicon tandem cells, it once got into trouble due to the "large data fluctuations and high energy consumption" of traditional xenon lamp simulators. The battery conversion efficiency measured in the morning was 25.2%, but it dropped to 23.8% in the afternoon on a cloudy day. Half a year was spent verifying the validity of the data, and the research and development progress was seriously lagging behind. Wang, the director of R&D, said helplessly. After the introduction of the Saifan LED solar simulator, the situation was completely reversed.
The Saifan LED solar simulator is equipped with the self-developed 5th generation intelligent spectral fitting algorithm, covering the entire spectral band from 400nm to 1100nm, with A matching degree reaching A + level (0.875-1.125), and the restoration accuracy in the 780-1100nm near-infrared region exceeds 98%. The data deviation is strictly locked within ±0.3%. "The error of the data measured today when reproduced next week will not exceed 0.5%." With the help of the equipment, Wang's team discovered the core problem that the near-infrared absorption efficiency of the battery was 13% low in just 12 days. After optimizing the materials, the battery conversion efficiency jumped to 27.3%, and the related results were published in ACS Energy Letters.
In terms of cost, the equipment's advantages are equally significant. Adopting high-efficiency LED light sources, the overall power consumption of the machine is only 650W, which is only 22% of that of traditional xenon lamp equipment. The monthly electricity cost for 8 units of equipment has been reduced from 20,000 yuan to 4,500 yuan. For a 1GW production line, the annual electricity cost savings exceed 200,000 yuan. The lifespan of the LED light source is up to 100,000 hours. Calculated based on an 8-hour daily usage, it can operate continuously for 11 years, completely eliminating the annual cost of 48,000 yuan for lamp replacement and the downtime for calibration. "Saifan LED simulator not only solves the problem of data accuracy but also significantly reduces operation and maintenance costs, allowing us to focus more on technological breakthroughs." " Engineer Wang sighed.
Aerospace testing: Extreme adaptation, Safeguarding the safety of space missions
"In-orbit life assessment of spacecraft battery wings: A 1% deviation in light intensity could lead to a three-year error. Traditional equipment has a light intensity drift of over 5% at a low temperature of -40 ℃, and the test data is simply not usable." " Sister Li, a test engineer from a certain team in China's aerospace industry, was once troubled by the simulation of the space environment. The "extreme environment adaptability" of the Saifan LED solar simulator has built a solid safety line for aerospace testing.
In response to the extreme environment of space, Saifan adopts a 6061-T6 military-grade aluminum alloy body and airtight packaging design. The equipment can operate stably within the temperature range of -40 ℃ to 60℃, and the light intensity fluctuation in the 720-hour low-temperature irradiation test is ≤±1.2%. When simulating the AM0 spectrum in space (solar radiation without atmospheric filtering), through calibration with 200,000 sets of measured data in space, atmospheric interference is precisely removed, with an irradiance error of ≤±1%, perfectly reproducing solar radiation in the universe. During the tests of the battery wings on the space station, the team, relying on these precise data, developed a new type of anti-radiation coating, which extended the in-orbit lifespan of the battery wings by three times.
In the face of special task requirements, Saifan's customization ability is equally outstanding. In the Mars exploration mission, the development of the "AM0 + Infrared Enhancement" LED module was completed in just 7 days, increasing the irradiance in the 800-1100nm band by 30%, perfectly matching the light characteristics of the Mars surface and helping to increase the power generation efficiency of the Mars rover's solar panels by 22%. "Saifan LED simulators have transformed space light simulation from 'barely meeting standards' to' precise and reliable ', providing a core guarantee for power safety in space missions." " Sister Li said.
Scientific research experiments: Flexible customization, unlocking new possibilities in optical applications
The photocatalytic hydrogen production experiment requires precise adjustment of the proportion of the ultraviolet band. Traditional equipment only has a fixed spectrum, and the experiment has been stuck for half a year with no progress. Professor Zhou's concern from Qingdao University of Science and Technology is a common pain point in the field of scientific research. The "flexible customization" function of the Saifan LED solar simulator has injected new vitality into scientific research and innovation.
This device supports 1% precision adjustment in the ultraviolet (300-400nm), visible (400-760nm), and near-infrared (760-1100nm) bands. The light intensity can be freely switched from 1W/m² (weak light) to 1500W/m² (strong light), and it can also simulate eight lighting scenarios such as day-night alternations and pulsed light. Just like a "palette of light". Professor Zhou's team successfully increased the photocatalytic hydrogen production efficiency by 40% by adjusting the ultraviolet proportion of the LED light source (from 5% to 15%), and the results were published in "Applied Catalysis B: Environmental".
Meanwhile, the equipment adopts the "distributed heat dissipation + microchannel water cooling" technology. During operation, the surface temperature is only 38℃, and the temperature fluctuation of the experimental environment is ≤±0.5℃, ensuring the stability and reliability of the data. "Previously, when students conducted experiments, they had to seize the low-temperature period. Now, they can obtain precise data at any time, and the progress of scientific research has directly increased by 50%." " Professor Zhou mentioned that a certain agricultural research group used this equipment to simulate the strong light on the plateau, and the yield of the barley variety they cultivated increased by 25%, which has been widely promoted in Qinghai.
Agricultural planting: Green production increase, lighting up the path to prosperity for farmers
Lao Yang, a strawberry grower in Shandong Province, once suffered from insufficient winter sunlight. The sweetness of his strawberries was only 8 degrees, with an average yield of less than 2,000 kilograms per mu and a selling price of 6 yuan per jin. His 20 mu of land lost over 100,000 yuan in a year. "Traditional supplementary lighting is energy-consuming and generates a lot of heat. If you get too close, it will burn strawberries. If you get too far, the light will be uneven. It's really a dilemma." " Lao Yang's predicament is a common problem in facility agriculture in the north. The situation completely changed after the introduction of the Saifan LED solar simulator in 2023.
The Saifan technical team conducted in-depth research in greenhouses and, based on the photosynthetic characteristics of strawberries, customized a lighting plan of "65% red light + 10% blue light +2 hours of 380nm ultraviolet light" - red light promotes sugar accumulation, blue light enhances fruit firmness, and ultraviolet light increases anthocyanin content. When the equipment is in operation, the surface temperature is only 38℃. It can be hung 30 centimeters above strawberries to ensure uniform lighting. With a low-power design of 650W, the monthly electricity bill is only 360 yuan, saving 70% compared to traditional fill lights.
After one growing season, the sweetness of Lao Yang's strawberries rose from 8 degrees to 11 degrees, the anthocyanin content increased by 18%, the yield per mu rose from 2,000 kilograms to 2,150 kilograms, the selling price per jin rose to 12 yuan, and the annual income of 20 mu of land increased by more than 200,000 yuan. "Before, growing strawberries relied on the weather. Now, with the LED light from Saifan, it's both worry-free and profitable!" " Nowadays, Lao Yang's strawberry garden has become a local "Science and Technology Agriculture demonstration Base", and more than ten surrounding growers have followed suit and adopted Saifan LED equipment.
Full-cycle service: Professional guarantee, ensuring worry-free use
Saifan Optoelectronics is well aware that high-quality products require comprehensive service support. For customers in different industries, we offer "exclusive service packages" : In the photovoltaic field, we provide "production line linkage debugging" to ensure seamless integration of equipment with the MES system; In the aerospace field, we offer "extreme environment calibration services", providing on-site low-temperature irradiation calibration once a year. In the field of scientific research, we offer "spectral customization training" to help teams master the 1% accuracy control skills. In the agricultural sector, "field guidance services" are provided to optimize lighting plans and increase yields.
The seven major regional spare parts centers across the country have over 95% of the commonly used parts in stock, providing a 7× 24-hour response. Equipment malfunctions can be repaired within 48 hours. A photovoltaic enterprise's production line simulator suddenly experienced a software failure. Saifan engineers provided remote guidance and solved the problem within one hour, without affecting the production on the same day. The core components of the equipment are covered by a 3-year warranty. The LED light source has a lifespan of up to 100,000 hours. After 3 years of use, we can also provide free on-site comprehensive maintenance to ensure that the accuracy does not decline.
Today, Saifan LED solar simulators have served over 200 customers worldwide. The repurchase rate of core customers is 85%, and 80% of new customers come from referrals by existing customers. From the efficiency breakthroughs in photovoltaic research and development to the safety protection in aerospace tests, from the innovative support in scientific research experiments to the income-increasing empowerment in agricultural planting, Saifan Optoelectronics has illuminated the innovation paths of various industries with its "controllable light". If your work or project is troubled by lighting problems, the Saifan LED solar simulator might just be the key for you to break through the bottleneck.
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