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锛0.1锝30,000lx
>Accuracy锛歡rade 1
>Test range of angle锛歏ertical axis锛90掳锝烇紜90掳 Horizontal axis 0掳锝360掳
>Accuracy of angle test锛毬0.2掳
>Selection of tested angle interval锛 0.5掳/1掳/1.5掳
>Draw luminous intensity spatial distribution curve(polar coordinates and right angle coordinates)
>Measure light beam automatically锛歡eneral 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: 桅22-180mm
>Power supply锛
a) Voltage锛欰C 220V卤10%
b) Frequency锛50Hz/60Hz
c) Power lose锛35VA
>Work environment requirements锛
a) Allowable environmental temperature锛0鈩冿綖40鈩
b) Best temperature in normal test锛25鈩兟5鈩
c) Relative humidity锛氣墹65锛匯.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
