LED Solar Simulator

Class AAA Rated System For Small-Area Solar Cells

LED testing lamp for quick, easy and reliable photovoltaic testing

Overview | Specifications | Features | Gallery | Software | In the Box | Resources and Support

Ossila solar simulator systems use a carefully calibrated array of LEDs to bring you a high-quality spectrum at impressively low costs. This system achieves excellent spectral match and high spatial and temporal uniformity, is perfect for testing small area devices. Following IEC 60904-9:2020 international standards, the Ossila LED Solar Simulator easily achieves:

• AAA Classification over 15 mm diameter area
• ABA Classification over 25 mm diameter area

With easy setup, minimal maintenance and no warm up time, you can start reliably testing your solar devices immediately. Buy in a bundle with our solar cell testing kit , to get everything you need to set up your photovoltaic testing lab.

High Spectral Control

1 Sun calibration but easily tuneable spectrum

Extended Lifetime

10,000+ operating hours

Short Warm-up Time

Switch on and use in seconds

Reduced Running Costs

Efficient LED bulbs

Compact and Adaptable

Portable and modular design

Minimal Maintenance

Avoid costly upkeep fees

No Explosion Risk

No hazardous bulbs

Two-Year Warranty

Buy with confidence

Specifications

How are LED Solar Simulators Classified?

There are several recognized standards used to classify solar simulators, published the main standards organizations : IEC, ATSM, or JIS. Although there are slight differences between the standards, they all classify solar simulators based upon their fluctuations in three key areas. These areas are:

1. Spectral match to a standardized solar spectrum
2. Spatial Non-uniformity
3. Temporal instability

The lower the fluctautions in each of these areas, the higher grage the solar simulator recieives. Solar simulators receive a grade A to C in each of these areas, with A being the highest (A+ in IEC 60904-9:2020 standards).

Spectral Irradiance Graphs

The programmed spectral irradiance of the LED solar simulator is at 1 Sun (left). Automatically, the lamp emits a total integrated power of 100 mW/cm² (1 Sun) over the wavelength range 350 nm – 1000 nm. Our LED solar simulator achieves a Class A rating within each wavelength range for small area devices.

The Ossila LED Solar Simulator also allows you to adapt the output spectrum of your lamp as you desire. The graph on the right shows a spectral distribution at 0.7 Suns. This matches the AM 1.5G spectral shape, accounting for the portion above 1000 nm. Tune the lamp easily to meet your spectral needs.

Spectral Irradiance Classification

The spectral match classification measures how well an LED solar simulator replicates the solar spectrum according to wavelength distribution. The Ossila LED Solar Simulator achieves Class A output in all wavelength categories at 1 Sun irradiance.

Spatial Uniformity

At the working distance of 8.5 cm and output power of 1 sun, the Ossila LED Solar Simulator achieves a spatial non-uniformity class A rating over a 15 mm diameter, making it ideal for testing small area devices. It also achieves a class B rating over 25 mm diameter, and a class C rating at 32 mm diameter, so you also can test larger cells with our LED solar simulator with ABA or ACA classification.

Temporal instability

The temporal instability classification measures the output consistency of a solar simulator. 

The light output from the solar simulator is stable over a long time frame, so easily achieves a Class A Temporal Instability classification. Conduct long-term experiments or lifetime measurements with the Ossila LED Solar Simulator without worrying about spectral fluctuation.

LED Solar Simulator Features

Reliable LED Light Source

The LED solar simulator has a calibrated array of light-emitting diodes to reliably and accurately mimic the solar spectrum. This light source has a long lifetime, good temporal stability, low running costs, zero maintenance, spectral tunability, less hazardous bulbs, and no explosion risk.

Modular and Compatible

The Ossila LED Solar Simulator is compatible with our solar cell testing systems, testing boards and substrates so you can set up a high quality solar cell testing lab in any laboratory. However, it's modular design also allows you to design your own testing system. The manual LED solar simulator is easily mounted onto standard breadboards, and can be easily controlled via serial commands. 

Easy-to-Use Software, Adaptable Spectrum

Our LED lamp will automatically deliver a calibrated output optimized to meet the solar spectrum. However with our free, downloadable software, you can control each LED output individually as well as change the total irradiance output. As of 2024, our system can also be calibrated to test indoor photovoltaics according to newly defined standards.

Compact Design, Adaptable Functionality

The small footprint is perfect for high-density laboratories and it can also be used in closer spaces where space is limited, such as a glove box*, or in a laminar flow hood. With its own optical breadboard included, it can be placed on any work top, or even fixed to larger optical benches.

* Not for use in volatile environments.

Our LED solar simulator is AAA rated for small area devices, which is ideal if you already use our 20 mm x 15 mm substrates. It also delivers class ABA illumination over a larger area (25mm diameter). This is suitable for testing large area devices which can be made on our 25 mm x 25 mm substrate systems. We individually calibrate each system with a NIST traceable photo radiometer and include a performance report with each unit. Click on the image below to download a sample certificate.

LED Solar Simulator Gallery

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Software

The Ossila Solar Simulator Console enables you to control and customize the output of your LED solar simulator. You can choose the overall power level or control each LED individually to tailor the output to your specific requirements. The user-friendly software can be installed on as many PCs as you want and you can access future updates for free.

Software Requirements

In the Box

• LED solar simulator
• Optical breadboard
• Adjustable height stand

Resources and Support

What's Different About the Ossila LED Solar Simulator?

A solar simulator is an essential piece of equipment for any lab working with photovoltaics, optoelectronics, or any research that requires a simulated sunlight environment. They provide an accurate and repeatable source of light that is essential for conducting photovoltaic research. But how do you choose the right solar simulator?

Read more...

Solar Simulator Classification and Calibration

For a light source to be classed as a solar simulator, it must be evaluated according to one of three standards, and comply with the specifications set out within. The three organisations that provide solar simulator standards are:

Read more...