Model Number: 328 LSG-1800B Key Specifications/Special Features: LSG-1800B/LSG-1700B/LSG-1600B goniophotometer is high precision automatic goniophotometric instrument for luminous intensity distribution measurements with facility for turning the light sourceLSG-1800B is an update version for LSG-1800, LSG-1800B use a constant temperature detector, Japanese motor and Germany precision angle coder which keeps high test accuracyFor industrial laboratory measurements the photometric data of luminaries such as LED luminaries, HID lamps, fluorescent lampsSpecifications:Meets the requirements of CIE, IEC, IES LM-79 andGB standardsReaching many measurement ways such as B-βand C-γTested luminaries rotates around an angle of (γ) ±180°(or 0-360°) and the tested luminaries rotates around itself with an angle of (C) ±180°(or 0-360°)

Luminosity testing range: illuminance 0.001lx-99,999lx,light intensity 1.0-107cd (detector)

Accuracy of angle: 0.0017° (LSG-1800B) and 0.01° (LSG-1700B/LSG-1600B)

Accuracy of photometry: CIE class A (class L is for option)

Testing accuracy: 2% (under standard lamp),stray light: less than 0.1%

English version software can run in WinXP, Win7 or Win8