Before selection, clarify: ① full-spectrum or monochromatic? ② do you need "sun-like"? ③ screening stage or mechanism deconstruction? The answers decide the category—full-spectrum / sun-like points to xenon and solar simulators; monochromatic / scanning points to LED sources.
| Dimension | Xenon light source | LED light source | Solar simulator |
|---|---|---|---|
| Spectrum | Continuous full spectrum | Narrow monochromatic | Near AM1.5G |
| Stability / life | Luminous decay, recalibrate | Long life, stable | Depends on core lamp |
| Use case | Full-spectrum validation | Wavelength scan / mechanism | Sun-like / cell characterization |
The three are complementary, not mutually exclusive: mature groups often have all three.
Xenon is cheap upfront but carries replacement and calibration cost; a single LED is a bit pricier but maintenance-free; solar-simulator price rises with class (A+ / A / B). With a limited budget, start with a xenon / solar simulator base, then add an LED monochromatic source for mechanism work as needed.
Contact Perfectlight: Still unsure between xenon, LED, or a solar simulator? Tell us your budget, system, and stage, and Perfectlight will give you a one-page light-source selection plan.
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Full-spectrum or sun-like points to xenon and solar simulators; monochromatic or scanning points to LED. They are complementary; labs often have all three.
Base on xenon or a solar simulator first, then add an LED monochromatic source for mechanism work; avoid heavy upfront asset.
Calibrate at the true sample position with a light power meter as a data safety net—reviewers ask about this most.
This article does not constitute a performance commitment; specific technical parameters are subject to the actual product documentation and mutual confirmation.
