News Application Cases A new standard for healthy home lighting environments across all age groups—SFIM-500 handles light environment assessment 
Release time：2026-09-28
From "visually bright enough" to scientifically quantified lighting: driven by all-age health, the home light environment has entered an era of refined testing. In the past, when choosing lights for home decoration or purchasing desk lamps, most people relied on subjective visual judgment of brightness. Now, with family health issues such as children's myopia, adult insomnia, and elderly visual difficulties becoming prominent, home lighting has long moved beyond the crude evaluation of "bright or not" and turned toward comprehensive scientific assessment based on spectrum, circadian rhythm, flicker, and color rendering. Relying on international lighting regulations issued by the CIE (International Commission on Illumination) and ISO (International Organization for Standardization), as well as domestic national standards, and given the differentiated physiological characteristics of people of different age groups, a new age-specific health standard needs to be established for the home light environment.
Children's eye protection, adults' sound sleep, and the elderly's vision—these three major home health pain points all fundamentally stem from an unreasonable light environment. Home lighting assessment has also upgraded from merely measuring illuminance and color temperature in earlier years to a trinity of comprehensive testing: eye protection + flicker prevention + circadian rhythm and human-centric lighting. The EVERFINE SFIM spectral flicker illuminance meter handles comprehensive assessment of the entire home light environment.
In response to the home lighting testing needs of all age groups, the EVERFINE SFIM series spectral flicker illuminance meter creates a one-stop testing solution. One device integrates multiple functions including illuminance, spectrum, and color measurement and analysis, flicker testing, and human-centric healthy lighting evaluation. A single measurement can output a full set of key data.
International patents, more precise measurement.
- Adopts international SBCT patented technology, greatly improving photometric measurement range and accuracy;
- Photometric measurement range of 0.01 lx to 200 klx, capturing data in real time and with precision whether in faint light or strong light environments;
- Measurable wavelength range of 380nm-780nm, wavelength accuracy of ±0.5nm, and illuminance accuracy of ±3%, making measurement more precise;
- High sampling rate and millisecond-level intelligent measurement, suitable for flicker measurement.
Full-parameter integration, more powerful functions.
- Basic lighting: illuminance (Lux), color temperature (CCT), color rendering index (CRI), and TM-30 color quality, rigorously verifying luminaire color rendering and uniformity;
- In-depth flicker investigation: one-click output of key indicators such as Pst (short-term flicker index), SVM (stroboscopic effect visibility measure), and flicker percentage, thoroughly investigating low-frequency/high-frequency flicker hazards;
- Healthy circadian rhythm quantification: supports circadian lighting equivalent melanopic illuminance EML, M-EDI, M-DER, etc., scientifically quantifying the impact of the light environment on physiological circadian rhythms, and identifying whether bedroom luminaires interfere with sleep.
Intelligent and portable, more efficient operation.
- 5.48-inch ultra-large OLED touchscreen, with data clear at a glance. Supports separated measurement between main unit and probe (USB/Bluetooth/WiFi connection), flexibly handling various complex on-site situations;
- Built-in 6GB large-capacity lithium battery with 20h ultra-long standby, meeting the needs of field work and long-duration operations;
- Real-time on-screen measurement, capable of storing large-capacity online test data and historical test data, achieving complete records and facilitating on-site comparative analysis. Data can be output and transferred in multiple formats such as Excel and JPG;
- Remote measurement. In situations with radiation exposure hazards, it can avoid direct human exposure, making applications more flexible and safer.
One instrument covers full-scenario data testing for children's study lighting acceptance, bedroom sleep lighting screening, and age-friendly lighting renovation.
The industrialization of healthy lighting has become a major trend. Moving away from subjective visual estimation and toward data quantification in home lighting is an inevitable trend. With the advantage of full-parameter integration, the EVERFINE SFIM series fills the gap in refined testing of the home light environment, providing efficient and complete lighting assessment solutions for home decoration companies, luminaire manufacturers, testing institutions, and household users.
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