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Characteristics Rapid, steady The integrated measurement system includes a special constant current source, a LCD display module, and an advanced fast spectral analysis module. ZWL-9200 performs optical-electro testing with great accuracy and repeatability in a few ms time. Our calibrations are available with traceability to NIM standards. Advantage: rapid and steady inspection function provides more accurate data for the experiment; avoid the systemic error effectively and improve the precision; Wide applicability These measurement systems are applicable for all kinds of lamps. LED testing is compatibility. Advantage: good compatibility and low cost; Convenient operation High efficient, good friend interface and humanity operation module are provided. Advantage: Advantage: it is easy to operate and learn; Perfect measurement and analysis system The high precision testing can be completed, for optical parameters(luminous flux 0-300 lm (expandable), light intensity 0-300 cd),color parameters(color temperature 1300-25000 K, wavelength 380-780 nm (UV, Ir can be extended))and other relevant parameters. The testing results, I-Iv, I-Vf, I- v, ρ-θ, θ - Iv curve are showed in the interface of software with database storage, parameter table, print preview functions.