HPG1900 Goniophotometric System is utilized to measure photometric parameters of luminaires for LED road lighting fixture, room lighting fixture and projecting lighting fixture, such as spatial intensity distribution curve, spatial iso-intensity curve, intensity distribution curve on each section(represent by right-angled coordinates or polar coordinates), iso-illuminance distribution curve on the plain surface, luminance limitation curve, luminaire efficiency, glare grade, effective beam angle, upward luminous flux ratio, downward luminous flux ratio, total luminous flux, effective luminous flux, utilization factor and electric parameters(voltage, current, wattage, power factor) and etc. Measure: Electronic parameters, spatial intensity distribution curve, spatial iso-intensity curve, iso-illuminance distribution curve, luminance limitation curve, luminaire efficiency, glare grade, effective beam angle, upward luminous flux ratio, downward luminous flux ratio, total luminous flux, effective luminous flux, utilization factor Features: 1) To set and control the process by computer 2) Special laser cross aim device makes the installation of luminaire 3) Independent rotating table with double axes, reaching C-γ and B-β testing coordinates 4) Meet the requirements of IEC·GB standards 5) Measured data match with international standard form (IES) and can be applied for lighting design by other lighting design software Specifications: 1) Testing optical distance: 5.0m 12.0m 2) Principal axis goniometer resolution: 0.001° 3) Angle accuracy: 0.1° 4) Luminaire can be rotated by -180 180° along with horizontal axis 5) Luminaire can be rotated by -180 180° along with vertical axis 6) Electric meter accuracy: 0.5 7) Max dimension of luminaire: L1.3m*0.8m / L1.4m*0.78m 8) Max weight of luminaire: 50kg