HangZhou Everfine Photo-e-info Co., Ltd., based in Hangzhou, China, operates as a specialized provider of advanced photoelectrical measurement instrumentation and comprehensive calibration services. The company caters to a diverse clientele, including research institutions, laboratories, and corporations throughout China. Everfine's extensive product portfolio encompasses a broad range of testing and analysis solutions. For LED and general lighting applications, they offer sophisticated devices such as spectroradiometers, goniophotometers, LED thermal and aging life test systems, and optical radiation safety assessment tools. Their offerings also include illuminance meters, glare and flicker analysis systems, and specialized equipment for plant and medical lighting, along with various test accessories. The company further develops and supplies instruments for ultraviolet (UV) and infrared (IR) light spectrum analysis, including UV spectral irradiance meters, radiation test systems, and tools for measuring UV color, photometry, and electrical characteristics. In the infrared domain, their line-up features high-accuracy array spectroradiometers, goniophotometers, automated photosensitive testers, and integrated gonio-spectroradiometer systems. They also provide comprehensive systems for VCSEL (Vertical-Cavity Surface-Emitting Laser) optical, electrical, and gonioradiometric analysis, complemented by automated online testing solutions and precision laser power meters. Their capabilities extend to automatic lamp testing, with offerings like auto-temperatured LED opto-electronic analyzers, goniophotometers, and retroreflection measurement devices. For onboard display technologies, Everfine delivers advanced detection equipment such as imaging luminance and radiance colorimeters, systems for evaluating head-up display optical characteristics, and DMS series systems for assessing navigation screen ambient light contrast and optical performance. Additionally, the company is involved in automotive material testing. Furthermore, Everfine addresses luminance and general display testing requirements, supplying instruments like luminance meters and light sources for various screen types, including smartphones, televisions (LCD, LED, OLED), projectors, tablets, and AR/VR displays. This category covers detailed luminance and color testing, as well as backlight and LCM module measurements. On the electrical measurement front, their solutions include power analyzers, single and three-phase digital power meters, analyzers for drivers, ballasts, and components, DC and AC power supplies, and systems for harmonics, flicker, electromagnetic compatibility (EMS), and electromagnetic interference (EMI) testing. These product offerings are comprehensively supported by their robust test and calibration services.