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Shaping the Future of Solar Testing: MBJ Solutions’ Sunlike Lab Sets a New Standard

Written by Negin Hashemi | Feb 3, 2026 6:58:51 AM

Are your lab tools and testing infrastructure keeping pace with the next generation of high-efficiency solar modules?

As the photovoltaic (PV) industry pivots toward perovskite and tandem technologies to overcome efficiency limits and manufacturing constraints, traditional test equipment is quickly falling behind. Accurately measuring the performance of multi-junction and emerging PV technologies requires a new class of solar simulator—one capable of delivering the precision, spectral control, and stability necessary to validate cutting-edge module designs.

MBJ Solutions, a leader in PV inspection and test systems, is answering that need with the Sunlike Lab, a state-of-the-art LED-based solar simulator that redefines how laboratories and R&D facilities test next-generation PV modules.

Why Precision Testing Is Now a Competitive Differentiator

For years, PV testing has been dominated by flash xenon-based simulators. But what worked for monofacial PERC or traditional silicon modules doesn’t necessarily meet the standards or spectral sensitivity required by tandem technologies.

With the Sunlike Lab, MBJ Solutions is:

  • Responding to the spectral mismatch issue that compromises the accuracy of multi-junction module testing.
  • Meeting evolving global standards like IEC 60904-1-1:2017, which explicitly define protocols for multi-junction photovoltaic devices.
  • Offering labs and manufacturers the ability to generate bankable performance data, critical for commercialization, certification, and investment.
“Accuracy is everything when testing tandem solar cells. If you don’t have a near-perfect match to the solar spectrum, you risk generating misleading power measurements,” says MBJ’s engineering team.

A Closer Look at the Tech Behind the Sunlike Lab

MBJ’s simulator isn’t just a test lamp—it’s a fully integrated testing environment that:

  • Replaces unstable gas-discharge lamps with long-lifetime LED arrays, ensuring minimal spectral drift over time.
  • Uses 32 LED channels to individually adjust irradiance levels and closely replicate the AM1.5G solar spectrum.
  • Provides a continuous light mode to precondition modules as per the newest IEC requirements—a key feature for stabilizing perovskite layers.
  • Achieves spectral coverage (SPC) of 100% and spectral deviation (SPD) of just 11.9%, far exceeding conventional systems.

Built-in Versatility:

  • EL Imaging System:
  • Temperature-Controlled Testing:
  • Z-Factor Certainty:

Preparing for the Future of Solar R&D

With commercial interest in perovskite and tandem technologies growing, European manufacturers and research labs are under pressure to modernize their testing infrastructure.

The Sunlike Lab empowers them to:

  • Validate product claims with precision-grade measurements
  • Accelerate innovation while ensuring standards compliance
  • Attract investment with credible performance data
  • Prepare for industrial-scale production and certification

Aligning with Europe’s Clean Energy Strategy

  • The European Solar PV Industry Alliance (ESIA) has called for renewed technological leadership in solar manufacturing.
  • With growing focus on energy sovereignty, clean-tech innovation, and supply chain resilience, tools like the Sunlike Lab are essential to reclaim competitiveness.
  • The simulator helps close the gap between European R&D capabilities and Asian manufacturing scale, supporting localized value creation.

TL;DR: Why This Matters

  • MBJ’s Sunlike Lab is more than a simulator—it’s a strategic tool for the future of solar testing.
  • It empowers labs, universities, and manufacturers to develop and validate tandem and perovskite modules with unmatched accuracy and stability.
  • Backed by MBJ’s experience in industrial PV testing and the expertise of MBJ Imaging in LED control, it’s a solution ready for both today’s R&D labs and tomorrow’s gigafactories.

🔗 Visit: mbj-solutions.com/en