250-1900nm Full Band Coverage: Juhong Optoelectronics Delivers Custom LED Solutions for AM0 Solar Sp
250-1900nm Full Band Coverage: Juhong Optoelectronics Delivers Custom LED Solutions for AM0 Solar Spectrum Simulators
With the rapid development of aerospace, new energy photovoltaics, materials science and other industries, high-precision solar spectrum simulators have become core equipment for device performance testing, environmental aging verification and scientific research calibration. The AM0 (Air Mass 0) spectrum corresponds to the actual solar radiation environment outside the Earth's atmosphere, serving as the benchmark standard for testing space photovoltaic devices, satellite materials and aerospace payloads. It imposes extremely stringent requirements on the wavelength coverage, spectral matching accuracy and long-term stability of light sources.
Traditional xenon lamp solutions suffer from persistent industry pain points including significant spectral drift, insufficient ultraviolet energy, poor long-wave infrared matching, short service life and high maintenance costs. In contrast, multi-band LED synthesis solutions have become the core direction of solar simulator technology upgrading, thanks to their advantages of independent controllability, long lifespan, low energy consumption and adjustable spectrum. Guangdong Juhong Optoelectronics Co., Ltd. specializes in the R&D and manufacturing of LED devices, with product wavelengths covering the full spectral range from 250nm to 1900nm — highly aligned with the light source requirements of AM0 solar spectrum simulators. We provide one-stop custom LED light source solutions for equipment manufacturers, research institutes and testing laboratories.

Full Band Matrix Layout for Precise AM0 Spectral Matching
The AM0 spectrum spans a wide range from 280nm to over 4000nm. Its ultraviolet band accounts for a notably higher proportion of energy than the ground-level AM1.5 spectrum, while the near-infrared and short-wave infrared bands carry nearly half of the total energy — these are the core challenges in spectral matching. Backed by a complete LED product matrix, Juhong Optoelectronics achieves gap-free coverage from deep ultraviolet to short-wave infrared, enabling accurate reconstruction of the AM0 spectrum.
Deep Ultraviolet to Ultraviolet Band (250nm–400nm): Covering the full UVC, UVB and UVA bands, we supply LED devices in multiple specifications including 255nm, 280nm, 310nm, 365nm and 395nm. This portfolio addresses the matching challenge of high ultraviolet energy in the AM0 spectrum, and fits core scenarios such as space material radiation aging testing and top-cell response testing of triple-junction solar cells. The devices adopt high-reliability packaging technology with excellent luminous attenuation control, supporting long-duration steady-state irradiation.
Visible Light Band (400nm–760nm): Covering the full color spectrum of blue, cyan, green, yellow, orange and red, the peak wavelength spacing can be refined to 10–50nm with precisely controlled full width at half maximum (FWHM). This provides sufficient wavelength granularity for continuous spectral fitting in the visible region, ensuring Class A and even Class A+ spectral matching accuracy, suitable for efficiency testing and spectral response calibration of silicon-based and perovskite solar cells.
Near-Infrared to Short-Wave Infrared Band (760nm–1900nm): We offer a full series of infrared LEDs including 850nm, 940nm, 1050nm, 1200nm, 1450nm, 1650nm and 1850nm, fully covering the long-wave response range of Ge bottom cells and InGaAs sub-cells. This fills the gap of insufficient long-wave infrared energy in traditional solutions, and eliminates current mismatch errors in multi-junction cell testing.
Multi-Scenario Adaptation Across All Solar Simulator Applications
With full band coverage and customization capabilities, Juhong Optoelectronics' LED light source solutions are widely adaptable to diverse solar simulator application scenarios:
Aerospace Industry: Delivering AM0 standard spectrum light sources for space solar simulators, supporting core scenarios including satellite solar wing cell testing, spacecraft thermal balance tests, space material radiation aging verification and optical sensor calibration. The products maintain stable luminescence under vacuum and wide-temperature environments.
New Energy Photovoltaics: Compatible with efficiency testing, spectral response testing and aging trials of crystalline silicon, perovskite, III-V multi-junction and other solar cell types, and supporting equipment development with multi-standard spectrum switching such as AM0 and AM1.5G.
Materials & Scientific Research: Supporting experimental scenarios including photocatalytic material R&D, polymer weatherability testing, sunscreen performance evaluation and photobiology research, with custom light source combinations featuring enhanced specific bands available upon research requirements.

Deep Expertise in LED Manufacturing with Full-Process Technical Support
Guangdong Juhong Optoelectronics Co., Ltd. focuses on the R&D and production of full-band LED devices. With mature packaging processes and a rigorous quality control system, our products feature high consistency, strong reliability and stable mass supply. For solar simulator customers, we provide full-process technical support from wavelength selection, optical parameter matching and sample validation to mass production delivery. We can tailor the optimal LED light source solution based on specific requirements such as equipment accuracy grade, spot size and optical path design.