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LED grow lights designer or developers need to know what wavelength configuration  is the best for plant, but testing wavelength is not easy job, it requires expensive optic equipment and professional operation by well trained employee. Our AI-MK350 Spectrometer is the first truly compact, lightweight portable handheld LED light spectrometer which can be used without a computer, it is very easy to use, and essential tool for led grow lights designers, distributors, plant growers and and plant researcher. 


With one click, you can get all lighting data, CCT, CRI, Lux , CIE1931, CIE 1976 and spectrum data, 




You can analyze spectrum of LED lights on site with no additional equipment, this is the fastest and most economic lighting analyzing tool so far, this device is good for LED/OLED research and development, lighting designer, interior designer, plant research /LED grow lights application, outdoor ads display screen, auto lights, food store illuminating, art and museum lights et al.  


 Accuracy and Reliability

Accuracy and reliability of spectrometer is main consideration except portable benefit, we tested a few single wavelength LEDs and multiple wavelengths fixtures from different manufacturers, below are results. In summary, AI-MK350 spectrum data is very close to data tested by standard spectrometer or data provided by manufacturers, therefore, this handheld spectrometer will be used to wide field with its portability, accuracy, simplicity  and affordable price.

Note:Test condition is not controlled by professional darkroom, the result may be interfered by other lighting source, e.g office lights, sunshine et al.  


 Spectrum of Seoul Semiconductor 660nm Red and 450nm Blue LED 



Spectrum of OSRAM OSLON SSL Hyper Red LED (660nm is the main wavelength of led grow lights)


Data of standard spectrometer(left) and AI-MK350 handheld spectrometer of EPA grow light designed by AIBC(model AI-180-200, 660nm:620nm:450nm:6000K=6:1:1:1)




CMOS Linear Image Sensor

Spectral Bandwidth

Approximately 12 nmhalf bandwidth

Receptor Size

Ø 6.6 ± 0.1 mm

Measurement  Range

70 ~ 70000 LUX ( FAQ Q9)

Wavelength  Range

360 ~ 750 nm

Integration Time  Range

8 ~ 1000 ms

Capture Function

One time / Continuous

Integration Mode

Auto / Manual

Measuring Modes

1. Basic Value Mode

2. Spectrum Graph Mode

3. CIE 1931 Chromaticity  Diagram  Mode

4. CIE 1976 U.C.S Chromaticity  Diagram  Mode

Measuring  Capabilities

1. Illuminance  / LUX

2. Spectral Irradiance

3. C.I.E. Chromaticity Coordinates

    (1) CIE 1931 x,y Coordinates

    (2) CIE 1976 U.C.S u',v' Coordinates

4. Peak Wavelength

5. Correlated Color Temperature; CCT ( in Kelvins )

6. Color Rendering Index; Ra ( Rendering Average )

Digital Resolution

16 bits

Dark Calibration


Stray Light

-25 dB max.
( Use the input of 550nm single-frequency and measurement the range of optical ± 40nm. )

Wavelength Data Increment

1 nm

Wavelength Reproducibility

± 1 nm
( Input source must be a stable light source. )

Illuminance Accuracy

Illuminant A @ 2856K at 20000 LUX

± 5%

Color Accuracy

± 0.0025 in CIE 1931 x,y

Color Repeatability

± 0.0005 in CIE 1931 x,y

CCT Accuracy

± 2%

CRI Accuracy @ Ra

± 1.5%


3.5" LCD 320X240 Touch Panel

Max. Files

 2000 Files @ 2GB SD Card

Battery Operation Time

 5 hours / Fully Charged


2500 mAh / Rechargeable Li-ion Battery

Data Output Interface

SD Card SD2.0, SDHC / up to 32G/ USB 2.0

Data Format

Compatible with Microsoft  Office Excel / BMP Date Format


144.2 x 78 x 24 mm ( H x W x D ),  310x250x110 mm (package/unit)

Weight ( with Battery )

250 g ± 20 g

Operating Temperature Range

0 ~ 35 °C

Storage Temperature Range

-10 ~ 40 °C

Language Version

English / Traditional Chinese / Simplified Chinese / Japanese

Cosine Correction  correction

What Included in Package:



 fivestar Model: AI-MK350 Spectrometer                                                                               


Model: AI-MK350 Spectrometer                                                                                  

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