This side-by-side comparison of the G2V Sunbrick and Holmarc’s HR-SS300WRM1-100A reveals key differences in spectral control, uniformity, and automation—so you can choose the solution that keeps pace with your research, not your maintenance schedule.
| Feature | G2V Sunbrick | Holmarc HR-SS300WRM1-100A | Questions To Ask Yourself |
|---|---|---|---|
| Area of Illumination | 15 cm × 15 cm | 10 cm × 10 cm | Will my Device Under Test (DUT) increase in size as my research progresses? |
| Spectral Range | 350 nm – 1200 nm | 300 nm – 1100 nm | Do I need UV photons starting at 300 nm or NIR coverage beyond 1100 nm, or will the power in these areas be sufficient? |
| Spectral Control | 32 tunable channels | Fixed spectrum using AM1.5G filter (Xenon lamp) | Will I need to simulate AM1.5G, AM0, or custom conditions? |
| IEC 60904-9 Compliance | Class A+A+A+ | Unknown | Do I need certified, high-accuracy performance across all IEC categories? What problems will I have with lower Class uniformity performance? |
| Spectral Deviation | <25% | <25% | How closely does the spectrum need to match real sunlight for my application? |
| Spectral Match | < ±12.5% | Not listed | How much spectral mismatch can my application tolerate before it affects measurement accuracy or material performance? |
| Long-Term Temporal Stability | <2% | Not listed | How sensitive are my experiments to light stability over time? |
| Spatial Uniformity | <1% | ± 1-10% depending on model | Do I need consistent irradiance over the full sample surface? Could spatial variation compromise my data? |
| Lifetime | 10,000+ hours | Shorter, due to Xenon lamp degradation | Will long-term consistency reduce repeat testing or recalibration? Do I require stability over hours, days, or longer? |
| Software & API | GUI + Python API | Basic GUI; optional PC control via RS232-USB | Will I need automation, scripting, or lab instrument integration? |
| Maintenance | No consumables; minimal maintenance | Requires Xenon bulb replacement and possible optical filter upkeep | How important is minimizing maintenance interruptions? Does my current budget factor in monthly ongoing costs for bulbs? |
| Price Point | ~$56.00/cm² (Class A+A+A+ over 225 cm²) | ~$192.00/cm² (Class A - C over 100 cm² depending on model) | Does the price reflect full system capability and long-term value? Will I need to upgrade later? |
When comparing the G2V Sunbrick and the Holmarc HR-SS300WRM1-100A Solar Simulator, the decision comes down to long-term flexibility, performance consistency, and automation readiness.
The Sunbrick offers a larger, certified Class A+A+A+ illumination area (15 cm × 15 cm), spectral tunability across 32 independent channels, and full software integration through a Python API, ideal for labs conducting advanced research, iterative testing, or automated workflows.
The Holmarc HR-SS300WRM1-100A is built around a 300W Xenon lamp with AM1.5G filtering and provides fixed-spectrum illumination over a 10 cm × 10 cm area. While positioned as a budget-conscious system, it relies on older lamp-based technology and manual controls, with more limited integration and higher long-term maintenance.
Both systems meet key IEC 60904-9 parameters, but only the Sunbrick reaches Class A+A+A+ compliance across spectral match, spatial uniformity, and temporal stability. The result? A system that supports evolving research, without requiring evolving workarounds at a price less than Holmarc.
Lab-Ready Efficiency
The Sunbrick’s compact, solid-state form factor fits in fume hoods, on desktop test stations, and easily fits in scale-up workflows—without rails, optics towers, or bulky water cooling.
Top research labs, aerospace agencies, and photovoltaics innovators choose G2V because their work demands repeatability, compliance, and control. In fields where even a 2% deviation can invalidate results, “close enough” simply isn’t.
Whether you’re:
Validating next-gen solar cells
Investigating novel materials or light-dependent reactions
Automating precision photonic workflows
The G2V Sunbrick gives you engineered sunlight without the DIY workarounds, bulb swaps, or uncertainty.
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Knowledge Base
Explore our knowledge base to learn more about customers’ work in the STEM field, the IEC standards, and the physics properties of light and how they apply to different applications. Our knowledge base is designed to make finding information on solar simulation faster than light.
