... light source of light, color, electric parameters, such as color temperature, the wavelength, the show color index, current, voltage, etc. Digital brightness meter ... meter type: XYI-III Measurement range: 0.1-100000 CD/m2 (3 degree Angle) measurement range: 0.01-200000 lux ... Integrating Sphere XINYE 1 2.0 Acceptable Light Distribution Performance Tester YUANFANG 1 2.0 Acceptable Production Flow: ...