The testing distance can be choosen . It can be applied for al the parameters measurement of single LED,cobination LED and reflected light such as light intensity,space distribution curve,centre intensity,spread angle of light beam.It meets the testing requirements of CIE127 and IEC61341. IESNA format output files which can be used by the lighting designing softwares directly. 
Test report
>Test range：0.1～30,000lx
>Accuracy：grade 1
>Test range of angle：Vertical axis－90°～＋90° Horizontal axis 0°～360°
>Accuracy of angle test：±0.2°
>Selection of tested angle interval： 0.5°/1°/1.5°
>Draw luminous intensity spatial distribution curve(polar coordinates and right angle coordinates)
>Measure light beam automatically：general half intensity angle as well as 1/4 intensity angle, 3/4 intensity angle and 1/10 intensity angle which can meet the special requirements
>Size of the tested lamp: Φ22-180mm
>Power supply：
a) Voltage：AC 220V±10%
b) Frequency：50Hz/60Hz
c) Power lose：35VA
>Work environment requirements：
a) Allowable environmental temperature：0℃～40℃
b) Best temperature in normal test：25℃±5℃
c) Relative humidity：≤65％R.H
According to the size of tested power supply or lamps, different sizes of lamp fixtures can be equipped. It requires higher testing environment conditions.
CIE127-2007 Measurement_of_LEDs
IEC 61341-1994 Method of measurement of centre beam intensity and beam angle(s) of reflector lamps
...
It is mainly used to measure single LED, combined LED, reflector, downlight, spotlight, etc
