When photovoltaic research and development no longer rely on weather forecasts, space tests can precisely replicate the spectrum of space, and agricultural planting can increase income through "light formulas" - these once unattainable scenarios have now become a reality thanks to the solar simulator of Saifan Optoelectronics. Having been deeply engaged in the optoelectronic field for two decades, Saifan has taken "independent research and development to break through technical barriers and scene customization to solve industry pain points" as its core, creating lighting solutions that combine "hardcore technology" and "practical value", making "controllable light" the core driving force for innovation in photovoltaic, aerospace, scientific research, agriculture and other fields.
From "Choke Point" to "Leader" : "Light Technology" with 20 Years of Technological Accumulation
As early as 2003, the Saifan team keenly perceived the constraint of "uncontrollable natural light" on the development of the industry - at that time, domestic research institutions had to rely on imported equipment to test photovoltaic materials, which was not only expensive (over 10 million yuan per unit), but also had a after-sales response cycle of up to three months. "We must create a high-precision solar simulator of our own!" " With this goal in mind, Saifan formed A 20-person R&D team. After five years of research and development, they broke through eight core technologies including "full-spectrum fitting algorithm" and "stability control in extreme environments". In 2008, they launched the first domestic A + level spectral simulator, breaking the foreign monopoly.
Nowadays, Saifan's technological strength has achieved "from following to leading" : its independently developed 5th generation intelligent spectral fitting algorithm, trained with 2 million sets of measured spectral data, can correct the illumination deviation in real time, and keep the spectral matching degree of the entire 400nm-1100nm band stable at the A + level (0.875-1.125). The military-grade environmental adaptation technology ensures that the equipment operation parameters fluctuate within ±0.5% from an extremely cold -40 ℃ to a high temperature of 60℃. Both of these core technologies have been granted national invention patents, and the related achievements have been included in the "Industry Standard for Photovoltaic Testing Equipment".
"Previously, when there was a problem with imported equipment, it would take three months for engineers to arrive. Now, Saifan can respond within 24 hours." " The words of the person in charge of a national-level photovoltaic laboratory express the feelings of many users. By 2025, Saifan solar simulators had served over 200 customers worldwide, and its market share had ranked first in China for eight consecutive years, earning it the recognition of the industry as an "expert in light testing".
In the photovoltaic field: 0.3% stability + industry-research collaboration, accelerating the application of high-efficiency batteries
The near-infrared absorption efficiency of perovskite/silicon tandem cells has always been a research and development challenge. Previously, due to insufficient equipment precision, no breakthrough direction was found for half a year. Mr. Wang, the R&D director of a leading photovoltaic enterprise, was once worried about the technical bottleneck. After the introduction of the Saifan solar simulator, the situation was completely reversed.
This device is like a "precision analyzer for light" : the energy distribution restoration accuracy in the 780-1100nm near-infrared band exceeds 98%, and it can clearly capture the differences in battery absorption of light of different wavelengths. The light intensity fluctuation is as low as ±0.3% per hour. After 10 consecutive hours of testing, the data deviation is strictly locked within 1%, making it possible for "the data measured in the morning to be reproduced in the afternoon". With the help of equipment, Wang's team discovered the core problem of "the near-infrared absorption efficiency of the battery being 13% lower" in just 12 days. After optimizing the materials, the battery conversion efficiency jumped from 25.1% to 27.3%, and the related results were published in ACS Energy Letters.
What is more worth noting is the "industry-research collaboration" effect: In response to the mass production needs of this enterprise, Saifan customized an automated testing line, seamlessly integrating 8 simulators with the production line MES system. The testing speed was increased to 60 pieces per minute, the A-grade product rate rose from 88% to 94%, and the annual loss of defective products was reduced by over 16 million yuan. Meanwhile, the equipment adopts energy-saving LED light sources, with a total power consumption of only 650W, which is 70% more energy-efficient than traditional xenon lamp equipment. A 1GW production line can save 200,000 yuan in electricity costs annually. "Saifan not only provides equipment but also helps us connect the entire chain from R&D to mass production. This is what a true partner is!" " Engineer Wang commented.
Aerospace and Scientific Research: 7-day Customization + Extreme Adaptation, Safeguarding breakthroughs in high-precision and cutting-edge fields
The in-orbit lifespan of the solar cell wings on the space station is directly related to the safety of the astronauts, and the test data must be 100% reliable. Sister Li, a test engineer from a certain team of China's aerospace industry, was once troubled by the fact that traditional equipment could not simulate the space environment - at a low temperature of -40 ℃, the light intensity of the equipment drifted by more than 4%, which deviated too much from the real space lighting.
Saifan's "customization capability" provides the perfect answer: For the space AM0 spectrum (solar radiation without atmospheric filtering), the R&D team completed the development of the "infrared enhancement module" in just 7 days. Through calibration with 200,000 sets of space measured data, the irradiance in the 800-1100nm band was increased by 30%, and the irradiance error was controlled within ±1%. The body of the equipment is made of 6061-T6 military-grade aluminum alloy and is equipped with airtight packaging technology. Within the temperature range of -40 ℃ to 60℃, the temperature fluctuation is ≤±0.3%, ensuring 720-hour continuous testing without failure.
Relying on these precise data, the aerospace team successfully developed a new type of anti-radiation coating, which has extended the in-orbit lifespan of the battery wing by three times. At Qingdao University of Science and Technology, Professor Zhou's team, with the help of the "1% precision light quality control" function of the Saifan simulator, adjusted the proportion of the ultraviolet band from 5% to 15%, and increased the photocatalytic hydrogen production efficiency by 40%. The results were published in "Applied Catalysis B: Environmental". From space exploration to basic research, Saifan's equipment can always precisely match the demands, which is the best interpretation of "technology serving the industry". Teacher Zhou said.
In the agricultural sector: "Light formula" + green energy conservation, transforming farmland into "high-yield fields"
"Due to insufficient light in the greenhouses during winter, the sweetness of strawberries cannot be enhanced. They can only be sold at 6 yuan per jin, and the 20 mu of land will lose over 100,000 yuan in a year." " The predicament of Lao Yang, a strawberry grower in Shandong Province, is a common problem in facility agriculture in the north. It was not until the introduction of the Saifan solar simulator in 2023 that the situation completely changed.
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. By supplementing with 6 hours of "customized light" every day, after one growing season, the sweetness of strawberries soared from 8 degrees to 11 degrees, the yield per mu increased from 2,000 kilograms to 2,150 kilograms, and the price per jin rose to 12 yuan. The annual income of 20 mu of land increased by over 200,000 yuan.
What surprised Lao Yang even more was the "energy efficiency" of the equipment: the total power consumption of the entire machine was only 650W, which was 70% more energy-efficient than traditional sodium lamp supplementary lighting equipment. The monthly electricity bill was only 300 yuan. "Before, with sodium lamps, the monthly electricity bill was over 1,000 yuan. Now, all the savings are pure profits!" Nowadays, Lao Yang's strawberry garden has become a "Science and Technology agriculture demonstration base" in the local area. More than ten growers around have followed suit and adopted Saifan's "light formula", which has driven up the regional strawberry output value by 35%.
Full-cycle service: A value upgrade from "selling equipment" to "being a partner"
Saifan is well aware that high-quality products require comprehensive service support. There are 7 major regional spare parts centers across the country, with over 95% of commonly used parts in stock. They offer 7× 24-hour response and can repair equipment failures within 48 hours. A photovoltaic enterprise's production line simulator suddenly broke down. Engineers from Saifan arrived at the scene within 2 hours and completed the repair within 3 hours, without affecting production on the same day. For research institutions, we offer "one-on-one" training, covering everything from spectral calibration to data interpretation, to ensure that the team can quickly get started. When purchasing the equipment, you can also enjoy the first spectral calibration service for free. The LED light source has a lifespan of up to 10,000 hours and does not need to be replaced for 3 years, saving 50,000 yuan in maintenance costs annually compared to traditional equipment.
"Choosing Saifan is not just about buying a piece of equipment; it's more like having an additional 'optical technology partner'." " This is the common feeling of over 200 customers. From the efficient operation of photovoltaic production lines to the safe execution of space missions and the joy of harvest in the fields, Saifan Optoelectronics has proven with its 20 years of technological accumulation that "good technological products should not only be hardcore but also practical." When the "controllable light" meets the "industrial demand", more innovative miracles are constantly emerging with the assistance of Saifan.
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