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Home / Products / LEDCube Any SPD Simulator

LEDCube Any SPD Simulator

Based on our proprietary optimization algorithm and more than 10 carefully selected high power LEDs , THOUSLITE LEDCube can easily and accurately simulate any lighting environment having different Spectral Power Distribution (SPD) Currently, LEDCube is the best commercialized spectral tunable lighting apparatus in the world. The target applications include lighting research, surface color visual assessment standard lighting, camera & sensor evaluation & calibration lighting, such as daylight simulator, non-visual effect, large test chart illumination, color rendering, whiteness evaluation etc In addition, LEDCube can create a large standard lighting environment for color visual assessment and camera sensor calibration

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  • Features
  • Specifications
  • Video
  • Applications
  • Downloads
  • FAQs
  • 2022052306365220
    Reproducing high quality daylight illuminant

    To reproduce any phase of daylight with highest quality on the market in terms of Color Rendering Index (CIE Ra) 99 and Metamerism Index (MI) Grade A

  • 2022052306401037
    Blackbody locus simulator

    To accurately produce a range of sources from tungsten to daylight varying Correlated Color Temperature (CCT) from 2000K to 20000K with tunable CIE Ra 0~100 and tunable Duv -0.02~+0.02. One device reproduces all light sources, resulting in high flexibility and less maintenance cost

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    SPD match

    To accurately reproduce any measured or imported SPD to record any light you want. It is easy to spread SPD files between different locations for light communication

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    High light intensity output and luminance adjustable

    High power SMD LEDs, together with the software, guarantees high light intensity output, and the light intensity is dimmable while keeping the same light quality

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    Fast change between illuminants and no warm up time

    Same illuminant properties during illuminant switch, and no warm up time & instantly stable

  • 2022052506111058
    Single-channel control

    Arbitrarily control the intensity of each channel in LEDCube to design any light wanted

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    Dynamic lighting

    Programmable light sequence and interval

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    Fast & accurate feedback

    Maintain the same light quality, compensating for age and variable environments with external micro-spectrometer. It is much more consistent over conventional lighting

  • 2022052506154763
    User-friendly software, SDK available

    User-friendly software LEDNavigator allow users to design light according to different optimization purposes, and it can be further customized, SDK available on request

  • 2022052506164112
    Flicker free

    Based on AM driven method, it provides a flicker free lighting environment

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    Longer life time and excellent long term stability

    Much longer lifetime compared to fluorescent technology, and optimized heat management resulting in excellent long term stability

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    Flexible installation

    Provide flexible installation methods for different applications, such as viewing cabinet, lifting for lighting room, customized support for large test chart 45/0 illumination etc

  • 2022052306420945
    LED channel wavelength selection service

    Provide LED channel wavelength selection service from UV, VIS to NIR

  • 2022052506201732
    Wireless control

    Up to 256 LEDCubes can be controlled separately or simultaneously via Zigbee wireless technology, easy to build  customized lighting space and future upgrade. Individual LEDCube control allows users to set different CCT for different LEDCubes in the same network to simulate actual environment

1 CIE 13.3-1995,Method of Measuring and Specifying Colour Rendering Properties of Light Sources

2 ISO 23603-2005 / CIE S 012/E, Standard method of assessing the spectral quality of daylight Simulators for visuaI appraisai and measurement of colour.

LEDCube-11 (R27)LEDCube-C15 (R27)LEDCube-I14 (R27)LEDCube-24 (R27)LEDCube-C31 (R39)LEDCube-HDR-5
Digital driving channels202020244848
LED channels*111151418> 315
Spectral range400-700nm350-700nm380-730nm350-780nm350-1000nm420-730nm
LED channel drive methodAmplitude Modulation, AM(default) / Pulse-width modulation,
PWM(customized) / AP*2		Amplitude Modulation, AM(default) / Pulse-width modulation, PWM(customized) /
AP*2		Amplitude Modulation, AM(default) / Pulse-width modulation, PWM(customized) / AP*2
Resolution*310 bit (1024 steps dimmable for each channel)12 bit (4096 steps dimmable for each channel)12,000 levels (4,000 levels each in high power, medium power and low power modes)
Warm up timeNoNoNo
LED Lifetime>10,000 hours>10,000 hours>10,000 hours
Capacity80 light source in LEDCube hardware, unlimited in software80 light source in LEDCube hardware, unlimited in software80 light source in LEDCube hardware, unlimited in software
Predefined illuminants*4Daylight Options (exclude UV):
CIE D50，CIE Ra> 98 MIvis: A （<0.25）
CIE D55，CIE Ra> 98 MIvis: A （<0.25）
CIE D65，CIE Ra> 98 MIvis: A （<0.25）
CIE D75，CIE Ra> 98 MIvis: A （<0.25）Others:
A， CIE Ra>97
or customer specify
Sources stored in the hardware can be reprogrammed by software LEDNavigator-LV		Daylight Options (exclude UV):
CIE D50，CIE Ra> 98 MIvis: A （<0.25）
CIE D55，CIE Ra> 98 MIvis: A （<0.25）
CIE D65，CIE Ra> 98 MIvis: A （<0.25）
CIE D75，CIE Ra> 98 MIvis: A （<0.25）
Others:
A， CIE Ra>97
UV
or customer specify
Sources stored in the hardware can be reprogrammed by software LEDNavigator-LV		Daylight Options (exclude UV):
CIE D50，CIE Ra> 98 MIvis: A （<0.25）
CIE D55，CIE Ra> 98 MIvis: A （<0.25）
CIE D65，CIE Ra> 98 MIvis: A （<0.25）
CIE D75，CIE Ra> 98 MIvis: A （<0.25）
Others:
A， CIE Ra>97
or customer specify
Sources stored in the hardware can be reprogrammed by software LEDNavigator-LV		Daylight Options (exclude UV):
CIE D50，CIE Ra> 98 MIvis: A （<0.25）
CIE D55，CIE Ra> 98 MIvis: A （<0.25）
CIE D65，CIE Ra> 98 MIvis: A （<0.25）
CIE D75，CIE Ra> 98 MIvis: A （<0.25）
Others:
A， CIE Ra>97
UV
or customer specify
Sources stored in the hardware can be reprogrammed by software LEDNavigator-LV		Daylight Options (exclude UV):
CIE D50，CIE Ra> 98 MIvis: A （<0.25）
CIE D55，CIE Ra> 98 MIvis: A （<0.25）
CIE D65，CIE Ra> 98 MIvis: A （<0.25）
CIE D75，CIE Ra> 98 MIvis: A （<0.25）
Others:
A， CIE Ra>97
UV
or customer specify
Sources stored in the hardware can be reprogrammed by software LEDNavigator-LV		2000K (Ra>90)
2700 K (Ra>90)
3000 K (Ra>90)
3500 K -(Ra>90)
4100 K (Ra>90)
5000 K (Ra>90)
6500 K (Ra>90)
10000K (Ra>90)
or customer specify
Sources stored in the hardware can be reprogrammed by software LEDColorLib
Tunable rangeCCT: 2000~20000K (Duv tolerance<±0.003)CCT: 2000~20000K (Duv tolerance<±0.003)CCT：2000~10000K，tolerance<±100K; Duv ：-0.02~+0.02，tolerance<±0.003 Ra:>90
Max illuminance1 light source
D65: 1 meter: 850lux; D50: 1 meter: 1250lux
Multiple light source can achieve higher intensity		1 light source
D65: 1 meter: 1050lux; D50: 1 meter: 1300lux
Multiple light source can achieve higher intensity		1 light source
D65: 1 meter: 1400lux; D50: 1 meter 1300lux
Multiple light source can achieve higher intensity		The following data refers to one LEDCube-HDR. Higher illuminance can be achieved by using multiple
LEDCube-HDRs;
All color temperatures (from 2000K to 10000K) have an actual measured illuminance of around 12000 lux at
a distance of 1 meter.
Short-term stability*5ΔCCT<±20K; ΔLuminance <±1%ΔCCT<±20K; ΔLuminance <±1%ΔCCT<±20K; ΔLuminance <±1% （Not high power） ΔCCT<±100K， ΔLuminance <±5% (High power）
Long-term stability*6ΔCCT<±50K; ΔLuminance <±2%ΔCCT<±50K; ΔLuminance <±2%ΔCCT<±50K; ΔLuminance <±2% （Not high power）
Software instrument compatibilityKonica Minolta CL500A & CS-2000, THOUSLITE FS &
FS-VIS-IR Spectrometer
Jeti Specbos 1211UV spectroradiometer		Konica Minolta CL500A & CS-2000, THOUSLITE FS & FS-VIS-IR
Spectrometer
Jeti Specbos 1211UV spectroradiometer		Konica Minolta CL500A&CS-2000, THOUSLITE FS& FS-VIS-IR , Jeti Specbos 1211/1211UV
Electrical100-240V, 50/60Hz, 180W (max)100-240V, 50/60Hz, 200W (max)100-240V, 50/60Hz, 500W (max) to drive 48 channels of LEDs110/230V, 50/60Hz, 1000W
Operating ambient temperature0-30°C0-30°C0-30°C
ConnectionUSB cable, wireless control, touch screen controllerUSB cable, 2.4G wireless (Built-in, Need 2.4G Dongle on PC side),
touch screen controller		USB cable, touch screen controller
Dimensions(L/W/H) & Weight300×300×210 mm, 270×270(emitting size), 7kg420×420×260 mm, 390×390(emitting size), 18kg420×420×260 mm, 390×390(emitting size), 18kg
Scope of deliveryLEDCube light source, power cord, USB cable, wireless senderLEDCube light source, power cord, USB cable, wireless senderLEDCube-HDR light source, power cord, USB cable,touch screen controller
Supplementary accessoriesCeilling installation kit, measurement device,
50×50×60cm Munsell N7 viewing cabinet, customerized aluminium support, touch screen controller		Ceilling installation kit, measurement device, customerized Munsell
N7 viewing cabinet, customerized aluminium frame support		Ceilling installation kit, measurement device, customerized Munsell N7 viewing cabinet, customerized
aluminium frame support
Software (optional)Six modules in LEDNavigator-LC: Blackbody locus
simulator, SPD match, Feedback*7, Dynamic lighting, Single channel control, Single LEDCube
control; SDK*8 available on request		LEDColorLib Windows application;
SDK

*1：The number of LED kinds
*2：AP is the hybrid driving of AM and PWM. The frequency of PWM is from 0.1 Hz to 1000 Hz.
*3：Actually 1000 steps can be used because some steps for low luminance calibration.
*4：Light quality is measured with 80% power
*5：When set light source as D50 without warm up time under enviroment temperature 25°, short-term stability is measured
during 24 hours and compared to average value.
*6：When set light source as D50 after 30 minutes warm up time under enviroment temperature 25°, long-term stability is
measured during 90 days and compared to average value.
*7：Users need to have the compatible instrument for measurements
*8：Users can utilize the SDK to realized the functions of Dynamic lighting, Single channel control, Single LEDCube
control.

Online Video

1 LEDCube Hardware Introduction
2 LEDCube Connection Mode
3 Hardware Interface and Accessories
4 Software Introduction
5 Software Upgrade
6 SDK Introduction

Applications

Downloads

FAQs

  • What is LEDCube and what are its main functions?

    LEDCube is an Any SPD Simulator launched by THOUSLITE, built on proprietary optimization algorithms and using more than a dozen carefully selected LEDs with different peak wavelengths to easily and accurately simulate any lighting environment with different Spectral Power Distribution (SPD).
    Core functions:
    • SPD match: Accurately reproduce any measured or imported SPD
    • High quality daylight simulation: Reproduce any phase of daylight with highest quality
    • Blackbody locus simulation: Accurately produce a range of sources from 2000K to 20000K with tunable CIE Ra and Duv
    • Dynamic lighting: Programmable light sequence and interval

  • What are the spectral range and color temperature range of LEDCube?

    LEDCube is available in multiple models with spectral ranges varying by model:
    • LEDCube-11 (R27): 400–700nm, 11 channels
    • LEDCube-C15 (R27): 350–700nm, 15 channels
    • LEDCube-I14 (R27): 380–730nm, 14 channels
    • LEDCube-24 (R27): 350–780nm, 18 channels
    • LEDCube-C31 (R39): 350–1000nm, >31 channels
    • LEDCube-HDR-5: 420–730nm, 5 channels
    Color temperature range: Continuously tunable from 2000K to 20000K.

  • What levels of Color Rendering Index (CRI) and Metamerism Index (MI) can LEDCube achieve?

    LEDCube can achieve:
    • Color Rendering Index CIE Ra: 0–100 customizable
    • Metamerism Index MI: Grade A (the highest international standard)
    This means LEDCube can simulate any light source with extremely high color reproduction accuracy, ensuring a “what you see is what you get” color evaluation experience.

  • What types of light sources can LEDCube simulate?

    LEDCube can simulate:
    • Daylight at any color temperature: From 2000K to 20000K
    • Light sources on the blackbody locus: With customizable CIE Ra and Duv
    • Any measured or imported SPD: Reproducing spectral data obtained from actual measurements
    • Custom-designed special light sources: Freely design desired light sources through single-channel control

  • What are the main application areas of LEDCube?

    The main application areas of LEDCube include:
    • Lighting research: Human-centric lighting, medical lighting, mesopic vision research
    • Object color visual assessment: Color rendering evaluation, whiteness evaluation
    • Camera and sensor testing and calibration
    • Daylight simulation
    • Non-visual light effects research
    • Agricultural lighting research
    • Large-space or customized standard lighting environments
    • Visual color evaluation and large test chart illumination

  • Does LEDCube support dynamic lighting?

    Yes. LEDCube supports programmable light sequence and interval, suitable for research and application scenarios requiring simulation of dynamic lighting environments.

  • How does LEDCube ensure long-term light quality stability?

    LEDCube ensures long-term stability through the following mechanisms:
    • Fast and accurate feedback system: Maintains the same light quality by compensating for aging and variable environments with an external micro-spectrometer
    • Optimized heat management: Ensures excellent long-term stability
    • Service life: Significantly longer than traditional fluorescent lamps

  • Does LEDCube support wireless control and how many units can be controlled?

    Yes. LEDCube supports wireless control via Zigbee technology, allowing up to 256 LEDCubes to be controlled separately or simultaneously, making it easy to build customized lighting spaces.

  • What installation methods are available for LEDCube?

    LEDCube provides flexible installation methods for different applications:
    • Viewing cabinet installation
    • Ceiling mounting for lighting rooms
    • Customized support for large test chart 45/0 illumination

  • What models of LEDCube are available and what are the differences between them?

    LEDCube is available in multiple models, with the main differences being LED channel count, spectral range, and application scenarios:
    • LEDCube-11: 11 channels, 400–700nm, basic lighting research
    • LEDCube-C15: 15 channels, 350–700nm, color research
    • LEDCube-I14: 14 channels, 380–730nm, image testing
    • LEDCube-24: 18 channels, 350–780nm, comprehensive applications
    • LEDCube-C31: >31 channels, 350–1000nm, advanced research (including NIR)
    • LEDCube-HDR-5: 5 channels, 420–730nm, high dynamic range applications

  • Each LEDCube weighs approximately 7 kg. How is it installed?

    LEDCube offers very flexible installation methods for different applications, with three recommended installation methods:
    ① Simple ceiling mounting: Use dedicated steel chains to mount LEDCube from the ceiling. The pitch angle can be easily adjusted by changing the hook position on the back plate of LEDCube.
    ② Custom aluminum profile bracket: Custom aluminum profile brackets can securely and conveniently secure multiple LEDCubes, with height adjustment via a platform.
    ③ Munsell N7 standard viewing cabinet: THOUSLITE provides this standard viewing cabinet, which is very convenient for building a standardized viewing environment. Dimensions: 50×50×60cm.
    Please refer to Section 2.1 of the user manual for LEDCube product dimensions and installation details.

  • Can the LED wavelengths in LEDCube be customized or replaced?

    THOUSLITE provides LED channel wavelength selection service from UV, VIS to NIR.Please communicate with THOUSLITE or your authorized distributor to confirm the required wavelengths before placing an order.

  • What operating systems does the LEDNavigator-LC software support?

    LEDNavigator-LC currently only supports Windows operating systems, including Win XP, Win7, Win8, and Win10.

  • When controlling multiple LEDCubes, why do different LEDCubes sometimes emit different light when the same light source number is selected?

    Each LEDCube has independent internal storage for the light recipe of each light source number (the drive value of each LED channel). If different LEDCubes have different light recipes stored under the same light source number, selecting the same light source number will cause different LEDCubes to emit different light.

  • Why does LEDNavigator-LC sometimes fail to detect LEDCube?

    If this occurs, first check whether the hardware switch on the LEDCube device is turned on, whether the wireless transmitter and software dongle are inserted into the computer, and whether the LEDCube driver has been installed for first-time use. Then restart both the LEDCube hardware and the LEDNavigator-LC software. If the issue persists after multiple restarts, please contact THOUSLITE or your authorized distributor.

  • Why does the measured matching light source differ more from the target light source after Feedback?

    This generally occurs for two reasons:
    ① Unnecessary feedback: When the initial light recipe is already very close to the target value—for example, when the color temperature difference between the measured value and the target value is less than 50K—performing Feedback may worsen the result.
    ② Feedback uses the most recent measurement as the baseline. Please ensure a measurement is taken before performing Feedback.

  • What if a required function is not available in the LEDNavigator-LC software?

    THOUSLITE provides software customization services.Please contact THOUSLITE or your authorized distributor for details.