When sunscreen formulas are strengthened for long-wave UVA and broad-spectrum protection is upgraded, the conventional 400nm upper limit can no longer meet the needs of deep evaluation. With an extended band of 280–450nm, stronger standard compatibility, and a higher dynamic range, the SPF-620 has become the preferred solution for mid-to-high-end sunscreen R&D and precision testing.

I. Core Positioning and Applicable Scenarios

The wavelength of the SPF-620 extends to 450nm, covering more long-wave UVA components. The SPF upper limit also reaches 1000, and the measurement indicators are consistent with the SPF-600, but it supports more comprehensive international standards. It is suitable for R&D and testing scenarios involving high-factor sun protection, broad-spectrum protection, and multi-region market access, balancing precision with scalability.

II. Technical Advantages and Application Value

Band upgrade, ensuring long-wave UVA is not missed: The 280–450nm measurement range covers longer-wave ultraviolet light than conventional models, more truly reflecting the formula's protection capability across the entire UVA segment and providing solid data support for broad-spectrum claims.

High dynamic detection, more precise for low-transmittance samples: With a 50,000:1 ultra-wide dynamic range, refrigerated noise reduction (dark noise < 0.1mV/rms), and a UV quantum efficiency of nearly 90%, it easily handles samples with ultra-low transmittance of < 0.05%, making high-factor sun protection testing more credible.

Global standard compatibility, making international market entry smoother: It fully supports ISO 23675, ISO 23698, ISO 24443, FDA 2012 & 2019, etc. It allows one-click switching between Chinese, American, and European regulations to meet multi-market registration and label compliance. The modular software can be quickly upgraded to adapt to new regulations.

Industrial-grade stability, serving both R&D and quality inspection: Integrated touch control, a manual three-dimensional positioning sample stage, and D/0 integrating sphere uniform illumination ensure 1-second scanning and data traceability. It is suitable for parallel comparison of multiple formulas in R&D small-scale trials and also supports high-frequency sampling on production lines.

III. Typical Application Summary

• Mid-to-high-end Sunscreen R&D: Long-wave UVA optimization, broad-spectrum formula screening, and efficacy claim verification.
• Cross-border Brands: Simultaneously meeting domestic and Euro-American regulations, covering multi-market testing with one set of equipment.
• Quality Inspection/Third Parties: High precision, wide standards, and high repeatability, enhancing the authority of reports.

With its extended band, comprehensive standards, and precise detection, the SPF-620 opens up the testing link from formula R&D to global launch, ensuring that every broad-spectrum sunscreen can withstand rigorous verification.