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Product Code G2009B1
Price £2,000 ex. VAT

Discover the Class AAA Solar Simulator for Small-Area Solar Cells

Reliable LED light source for fast and consistent solar cell testing at an excellent price.

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

Compact and low price, the Ossila Solar Simulator is ideal for characterizing small-area solar cells, providing:

  • Excellent AAA spectral distribution over a 15 mm diameter area
  • ABA classification over a 25 mm diameter area (IEC 60904-9:2020 International Standard)
  • Stable and reliable output, easily achieving Class A temporal stability
  • Requires zero maintenance and minimal warm up time.

Just plug it in, turn it on, and start measuring.

You can buy on its own to be easily integrated into your solar cell testing lab - or as part of our solar cell I-V test systems (available as a solar cell testing kit) to equip your laboratory with a fully integrated PV characterization system.

Two-Year Warranty

Two-Year Warranty

Covered by the Ossila Warranty

Long Lifetime

Long Lifetime

10,000 operating hours

Minimal Warm-up Time

Minimal Warm-up Time

Ready to use and measure



Highly efficient LED bulb

Spectral Tunability

Spectral Tunability

Tune with powerful software

Compact Size

Compact Size

Portable and modular design

Zero Maintenance

Zero Maintenance

No high maintenance fee

No Explosion Risk

No Explosion Risk

LED-based, steady state

Ossila Solar Simulator Product Overview

Why Should You Buy the Ossila Solar Simulator?

The Ossila Solar Simulator offers great value and excellent quality. To achieve this, we use an array of powerful LEDs to accurately simulate the AM1.5G spectrum over a wavelength of 350 – 1050 nm. Furthermore, through our free, downloadable software, you have the ability to control the intensity of each individual LED. This gives you maximum control over the output of your solar simulator lamp.

Solar Simulator Specification

Type LED-Based, Steady State
Spectral deviation <70%
Spectral coverage >80%
Working distance 8.5 cm (3.35")
Irradiance (at working distance) 1000 W/m2
Maximum Lamp Time 10000 hours
Dimensions (head only) L x W x H 10.5 cm x 9.0 cm x 8.0 cm (4.13" x 3.54" x 3.15")
Weight 600 g (1.32 lbs)

Solar Simulator Features

Wide UV-Vis-NIR spectral range

LED Lamp

The Ossila Solar Simulator uses light-emitting diodes to generate its light output. The advantages of LEDs over arc-lamp or incandescent alternatives include:

  • High efficiency
  • Long operating lifetime
  • High temporal stability
  • Zero maintenance
  • Spectral tunability
  • Virtually zero warm-up time
  • Ozone-free
  • No explosion risk

These many advantages of LED light sources result in a solar simulator that can reliably and accurately reproduce the solar spectrum.

Modular Design

Modular Design

The modular design of the Ossila Solar Simulator gives you the freedom to create a solar testing system that fits into your laboratory. There are various accessories and kits designed around the solar simulator, to suit different substrates, device architecture and measurement needs.

This includes the Ossila Solar Simulator Lamp alone for custom mounting, the height adjustable system for use with your existing test setup and the Solar Simulator packaged with our manual/automated solar cell IV test system for complete solar cell measurement.

Easy-to-Use Software

Easy-to-Use Software

There is no special programming or set up needed for the Ossila Solar Simulator to deliver dependable, high-quality solar irradiance. In most cases, all you need to do is plug it in and turn it on. By default, the lamp will deliver a calibrated output optimized to meet the solar spectrum.

However, our free, downloadable software allows you to control the LED outputs individually as well as change the total irradiance output. You can also control the lamp using a serial command library. This can be useful for specialist measurements or non-conventional spectral output (e.g. indoor PV measurement, low light intensity conditions, etc).

Compact Design, Adaptable Functionality

Compact Design, Adaptable Functionality

The Ossila solar simulator has a very small footprint, so is perfect for high-density laboratories. It can also be used in closer spaces where space is limited, such as a glove box*, a dry box or in a laminar flow hood.

The Solar Simulator comes with its own optical breadboard, so it can be placed on any work top. However, both the stand and breadboard can be fixed to a larger optical bench surface if desired.

* Not for use in volatile environments.

High Specification

The Ossila Solar Simulator is AAA rated for small area devices, which is ideal if you already use our 20 mm x 15 mm substrates. The Ossila Solar Simulator 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 report.

Click to view an example performance report

Manual solar simulator in use Solar Simulator solar cell testing board


Ossila Solar Simulator Assembling Solar Simulator Ossila Solar Simulator


The Ossila Solar Simulator Console enables you to control and customize the output of the Ossila Solar Simulator. You can choose the overall power level or control each LED in the Solar Simulator individually to tailor the output to your specific requirements.

Solar Simulator Console software
Solar Simulator Console software

Software Key Features

Intuitively-designed user interface

The software is designed to be simple and easy-to-use, no hidden menus or settings

Customize your light

Choose a predefined total output power or change each LED individually

No programming required

Just connect a Solar Simulator and start the software, no programming knowledge needed

Completely free

Install the software on as many PCs as you want and download future updates for free

Included with the Ossila Solar Simulator

  • LED Solar Simulator
  • Optical Breadboard
  • Adjustable Height Stand
  • Solar Simulator Console Software

Accessories and Related Products

Resources and Support

How to Set Up Your Solar Simulator Light Source

The Ossila Solar Simulator is available in two configurations. The automated set up which uses the automated Ossila Solar Cell I-V Test System with a fitted test board. It can also be configured using the manual test board in combination with the Ossila Source Measure Unit. This guide details how to assemble the manual Ossila Solar Simulator.

Learn more...
Analyzing and Improving Low Device Metrics: FF, VOC and JSC Analyzing and Improving Low Device Metrics: FF, VOC and JSC

Anaylzing key device metrics such as fill factor (FF), open-circuit voltage (VOC), and power conversion efficiency (PCE), can help you find potential issues with your solar cell devices

The Solar Spectrum The Solar Spectrum

The purpose of a solar simulator is to recreate the sunlight received on Earth. This is easier said than done as sunlight starts its journey in complex nuclear reactions in the sun's core, and is modified on it's journey to us through interactions with the Earth's atmosphere.

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