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By certification 
LSG-1800B Goniophotometer system is a update version of LSG-1800. The LSG-1800B have a constant temperature detector, and use luminous intensity standard lamp to calibrate the system. Lisun develop a new software to run LSG-1800B.
Measures:
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:
• Reaching many measurement ways such as B-β, A-α and C-γ
• Can be drived by both double pillars and single pillar
• Special laser cross aim device makes the installation of luminaire
• The special rotating electric devices for lighting the tested luminaire
• Provided with the precious metal fiber for signal transmission
• Measured data match with international standard form (IES) and can be applied for lighting design by other lighting design software such as Dialux
• Emergency stop function
• RS-232C interface, compatible with all kinds of computers
• Meets the requirements of IEC, CIE and LM-79 standards
Measures:
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:
• Reaching many measurement ways such as B-β, A-α and C-γ
• Can be drived by both double pillars and single pillar
• Special laser cross aim device makes the installation of luminaire
• The special rotating electric devices for lighting the tested luminaire
• Provided with the precious metal fiber for signal transmission
• Measured data match with international standard form (IES) and can be applied for lighting design by other lighting design software such as Dialux
• Emergency stop function
• RS-232C interface, compatible with all kinds of computers
• Meets the requirements of IEC, CIE and LM-79 standards
