"Wait for a sunny day to measure data", "Guess the parameters of space light", "rely on luck to hope for a bountiful harvest" - practitioners in the photovoltaic, aerospace, scientific research and agricultural fields have long been trapped by the anxiety of "uncontrollable light". Saifan Optoelectronics, which has been deeply engaged in the optoelectronics field for 20 years, has brought "obedient light" to the front line of the industry with a solar simulator that integrates 0.08% stability, -40℃ weather resistance, and 1% precision customization, transforming innovation from "relying on the weather" to "taking the initiative to control". Today, this "artificial sunlight" has supported 12 national-level space missions, helped over 20 achievements be published in SCI journals, and has become the common choice of more than 200 global customers.
1. Photovoltaic R&D: 0.08% stability, enabling efficiency to break through by 60%
"The same batch of perovskite cells had an efficiency of 25.1% in the morning, but dropped to 23.8% in the afternoon on a cloudy day. We have been verifying the validity of the data for half a year." " The troubles of Liu, the R&D director of a leading photovoltaic enterprise, used to be a common occurrence in the industry. After the introduction of the Saifan solar simulator, the R&D pace has completely "shifted gears".
The core confidence of Saifan comes from its technical hard power: it adopts A hybrid light source architecture of "xenon lamp + LED supplementary lighting", covering the full spectrum from 350nm to 1100nm, and the spectral matching degree reaches A + level under the IEC 60904-9 standard. Especially for the 780-1100nm near-infrared region that is easily overlooked by traditional equipment, through the 5th generation intelligent spectral fitting algorithm, the energy distribution restoration accuracy exceeds 98%, and even a 0.5% absorption difference can be accurately captured. What is more crucial is its stability - the light intensity fluctuation rate for 8 consecutive hours is as low as 0.08%, far exceeding the industry average of 0.3%. "The error of the data measured today when reproduced next week will not exceed 0.1%."
With this precision, the team led by Engineer Liu identified the core issue of "12% lower near-infrared absorption efficiency of the battery" within 12 days. After optimization, the efficiency jumped from 23% to 27.5%, and the results were published in ACS Energy Letters. In the mass production stage, an automated testing line composed of 10 pieces of equipment screens at A speed of 60 pieces per minute. The rate of A-grade products has increased from 88% to 93%, reducing the loss of defective products by over 12 million yuan annually. The cost side is even more surprising: The 650W overall power consumption is 70% less than that of traditional xenon lamps. The 1GW production line saves 200,000 yuan in electricity costs annually. The LED light source has a lifespan of 100,000 hours (which can be used for 34 years if calculated at 8 hours a day), completely eliminating the trouble of "replacing the lamp every six months".
Ii. Aerospace Testing: -40℃ weather resistance, Replicating space light "without the slightest deviation"
"Testing of spacecraft battery wings, a 1% deviation in light intensity may lead to an error in the three-year life assessment." " Sister Li, a space tester, had her concerns resolved in front of the Saifan equipment. This "Space Light Replication Machine" features a 6061-T6 military-grade aluminum alloy body, combined with dual circulation water-cooled temperature control and airtight packaging. Within the temperature range of -40 ℃ to 60℃, the temperature fluctuation is ≤±0.3℃, and the spectral output deviation is always ≤±0.5%.
When simulating the AM0 spectrum in space, it was calibrated with 200,000 sets of space data, precisely eliminating atmospheric interference, with an irradiance error of no more than ±1%. During the 720-hour aging test of the space station's battery wing, the fluctuation of the equipment's light intensity was always ≤0.1%, fully recording the aging law of the material. The new anti-radiation coating developed to assist in the research and development has extended the in-orbit service life of the battery wing from 5 years to 15 years. During the Mars exploration mission, Saifan demonstrated its "ultra-fast customization ability" : it completed the development of the "AM0 + Infrared Enhancement" module in just 7 days, increasing the irradiance in the 800-1100nm band by 30%, perfectly replicating the surface light of Mars, and enhancing the power generation efficiency of the Mars rover's solar panels by 22%, thus resolving the "energy anxiety" in deep space exploration.
Iii. Scientific Research Agriculture: 1% Precision Control Turns "Simple Formula" into "Golden Harvest"
To study photocatalytic hydrogen production, it is necessary to adjust the proportion of ultraviolet rays from 5% to 15%. Traditional equipment only has a fixed spectrum, and the experiment has been stuck for half a year. The predicament of Teacher Zhou from Qingdao University of Science and Technology was broken by Saifan's "light palette" ability. The device supports 1% precision adjustment in the ultraviolet, visible and near-infrared bands. The light intensity can be freely switched from 0.1sun (on cloudy days) to 2sun (strong midday light), and it can also simulate 8 scenarios such as day and night alternations and pulsed light.
Professor Zhou's team thereby increased the efficiency of photocatalytic hydrogen production by 40%, and the results were published in "Applied Catalysis B: Environmental". In the agricultural sector, this beam of light has become a "product-increasing magic weapon" : After strawberry grower Lao Yang in Shandong introduced the equipment, the Saifan team customized a plan of "65% red light + 10% blue light +2 hours of 380nm ultraviolet light", providing supplementary lighting for 6 hours every day. After one growing season, the sweetness of strawberries rose from 8 degrees to 11 degrees, the anthocyanin content increased by 18%, the yield per mu rose 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. What's even more worry-free is that the monthly electricity cost for the equipment is only 360 yuan, which is 70% less than that of traditional supplementary lights, and the light source does not need to be replaced for three years.
Iv. Full-cycle Service: From "Equipment Delivery" to "Long-Term Partner"
Saifan is well aware that good equipment requires good service as a foundation. Seven major spare parts centers across the country have a reserve of 98% of commonly used components, promising a 7× 24-hour response and repair within 48 hours. For a certain photovoltaic enterprise, when equipment suddenly broke down, engineers arrived at the scene within 2 hours and production resumed within 3 hours. For different clients, our services are more targeted: We offer "one-on-one" training for research institutions to help teams master spectral regulation skills within a week. Provide "production line linkage debugging" for photovoltaic enterprises to achieve seamless integration with the MES system. Provide field guidance for agricultural customers and optimize light solutions based on the growth stages of crops.
In addition, the equipment can enjoy the first free spectral calibration, a 3-year warranty on core components, and free on-site maintenance after 3 years of use. The equipment in A certain laboratory has been in use for five years, and its spectral matching degree still remains at the A + level, which confirms the quality confidence of Saifan.
From the efficiency revolution of photovoltaic production lines to the safety escort of space missions, from the scientific research breakthroughs in laboratories to the joy of harvest in the fields, with 20 years of technological accumulation, Saifan Optoelectronics has made "controllable light" an "accelerator" for innovation across the entire industry. At present, the repurchase rate of its core customers has reached 82%, and 85% of new customers come from referrals by existing customers. If your innovation is being stuck by the problem of light exposure, this beam of light that "understands the needs, is precise enough, and provides long-term companionship" might just be the key to breaking through the bottleneck.
Link Microblog
