| Satisfying the GB, CIE and BSI, New Zealand and Australia requirements (relevant standards are provided by the buyer) for goniophotometry of luminaires, this system is used to measure spatial luminous intensity distribution of luminaires for floodlight, street lighting and interior lighting, and other photometric parameters, such as spatial iso-intensity curve, intensity distribution curve of each section (shown in rectangular coordinate system or polar coordinate system), iso-illuminance distribution curve, luminance limitation curve, luminaire efficiency, glare grade, effective beam angles, upward luminous flux ratio, downward luminous flux ratio, total luminous flux, effective luminous flux, utilization factor and electric parameters (wattage, power factor, voltage and current) of luminaries etc. The measured data may be saved in formats as THILLUM, IES, TM14, PHILIPS and EULUMDAT for application software of lighting calculation and reflector design.•Photometric Measurement range: illuminance 0.0001lx to 10000lx, Optional: illuminance 0.001lx to10000lx;•Photometric Accuracy : 2% (stable standard lamp);•Stray Light: less than 0.1%;•Angle Accuracy: 0.1 degree;•Driving Angle Resolution: γ angle is 0.0016 degree, C angle is 0.03 degree;•Dimension of Mirror: 1.5m×2.0m;•Power Meter (for Yakogawa WT-210): Capacity: DC/AC 600V, 20A; Accuracy: 0.1%;•AC Power Source: Power Capacity: 5 kVA. Load stability: 0.2 %. Output frequency: 50Hz/60Hz, or 47Hz-63Hz;•Capacity of Goniometric Console for measured luminaries. Power: AC/DC 600V/10A×6 lines Weight: 50kg Luminosity Diameter: 1.6m;•Photometric Distance: 15m to 30m. | 
