By Vvon Engineering Team | Published | Updated
Compare EternalSun LED and SPIRE flash solar simulators by PV technology, device size, electrical measurement, temperature control and classification evidence.
Scientific & laboratory RFQ checklist (TXT)
A PV testing laboratory needs a simulator and electrical measurement system matched to its cell or module technology. Universities, manufacturers and quality-control teams can use controlled illumination to investigate performance, but complete module qualification and laboratory accreditation require much more than one instrument.
A solar simulator supplies controlled artificial illumination for PV measurement. Standard test conditions combine a reference spectrum, 1000 W/m² irradiance and 25°C cell temperature; illumination alone does not establish the device temperature. With suitable electrical measurement and a defined procedure, an I–V curve yields open-circuit voltage, short-circuit current, maximum power and fill factor. Efficiency additionally needs the defined active/aperture area and incident irradiance.
EternalSun offers steady-state and flash systems for PV testing. Compare the current product documents and classification evidence for the offered test area, operating mode and spectrum, rather than treating a manufacturer name as a certificate for every configuration.
| Product direction | Measurement approach | What to specify |
|---|---|---|
| LED Light Soaker | Steady-state and supported flash operation | Device technology, area, spectral adjustment and optional temperature control |
| Mini-device setup | Small cells or modules within an agreed fixture | Illuminated area, uniformity, contacting and stabilised measurement |
| SPIRE laboratory/manufacturing flasher | Xenon flash measurement | Pulse duration, device response, spectrum and I–V acquisition |
| Temperature-controlled laboratory flasher | Flash measurement with controlled device conditions | Temperature range, uniformity, stabilisation and measurement sequence |
The current LED Light Soaker page describes A+A+A+ performance, a tunable 300–1200 nm spectrum and an optional temperature chamber covering 15–85°C. Confirm the offered configuration and classification report. Tandem measurements require appropriate spectral balance and electrical methodology, not merely two selected wavelengths. LED life does not eliminate calibration or verification.
A research group may need small-device fixtures, stabilised measurements and spectral adjustment. A module QC team may need repeatable full-size power checks and a throughput plan. A certification laboratory additionally needs the full set of applicable test capabilities, competent staff and an accredited scope. Define the intended outputs before selecting the simulator.
IEC 60904-9:2020 classifies spectral match, irradiance non-uniformity and temporal instability, including A+ criteria. Obtain the report for the offered area and operating conditions, including the relevant temporal measurement definitions. Simulator classification does not itself certify a module to IEC 61215/61730 or make a power report acceptable to every financier.
When evaluating an installed reference, request the instrument model, commissioning scope and approved evidence of its use. A case study should distinguish documented project facts from assumptions about research applications, calibration stability or annual performance. Vvon can provide relevant available project information during the technical discussion.
Send the PV technology, maximum device dimensions, electrical range, required tests, throughput and site details. Vvon can confirm suitable EternalSun configurations and a quotation covering the agreed equipment, installation, training and support. Import classification, lead time and calibration arrangements must be confirmed for the actual package. EternalSun’s laboratory range distinguishes its LED and SPIRE flash options.
Share your application, equipment requirements and procurement timeline. Our engineers can help clarify the configuration and scope for your enquiry.