Indoor Light Simulator
Reliable and intuitive PC software, designed to help speed up your research, is provided at no extra cost. The latest versions are always available to download via our website.
Ossila Solar Simulator Console 1.5.0
The latest version of the control software for the Solar Simulator. Click here to read the End-User License Agreement.
Download (57 MB)
Minimum System Requirements
Operating System Windows 10 or 11 (64-bit)
CPU Dual Core 2 GHz
RAM 4 GB
Available Drive Space 147 MB
Monitor Resolution 1440 x 960
Connectivity USB 2.0
Indoor Light Filter Manual
Product manual for the Ossila Solar Simulator
Light Simulator for Characterizing Indoor Photovoltaic Devices
Reliable LED light source for fast and consistent indoor and outdoor PV testing
Overview | Specifications | Features | Gallery | Software | In the Box | Resources and Support
A compact system to easily replicate indoor illumination levels, the Ossila Indoor Light Simulator consists of a solar simulator and detachable indoor light simulation filter. This gives you the flexibility to switch between indoor PV and outdoor solar cell testing within your research.
For traditional PV testing, a solar simulator is ideal for characterizing small-area solar cells, providing excellent AAA spectral distribution over a 15 mm diameter area and ABA classification over a 25 mm diameter area (IEC 60904-9:2020 International Standard). The solar simulator offers stable and reliable output, easily achieving Class A temporal stability. Plus, it requires zero maintenance and minimal warm up time.
For indoor PV testing, the indoor light simulation filter allows you can match the spectral output for testing indoor PV devices and achieve class ABSA illumination over a 20 mm diameter area at two different illuminance levels. The filter enables the Solar Simulator to meet the specifications required for the IEC TS 62607-7-2:2023 international standard for testing photovoltaics in indoor conditions.
Indoor Light Filter
Test indoor PV devices
Long Lifetime
10,000 operating hours
Minimal Warm-Up Time
Ready to use and measure
Cheap-to-Run
Highly efficient LED bulb
Spectral Tunability
Tune with powerful software
Compact Size
Portable and modular design
No Explosion Risk
LED-based, steady state
Two-Year Warranty
Buy with confidence
Specifications
Solar Simulator
| 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) |
Indoor Light Filter
| Illuminance Levels | 1000 lx, 200 lx |
|---|---|
| Spectral Coincidence | A |
| Spatial Non-Uniformity | B - 20 mm diameter |
| Temporal Stability | SA |
| Dimensions | 14 cm x 12 cm x 2 cm |
| Weight | 70 g |
Classification for Indoor PV Testing
The IEC standards for indoor PV evaluation contain requirements for illumination sources. However, these are specific to device architecture and illumination source. In other words, you will need to calibrate your solar simulator for your specific device which has been optimized for a particular light source. There are some general criteria that these simulators should meet. Similar to traditional solar simulators, there are three general categories defined in the standards:
- Spectral Coincidence
- Spatial uniformity
- Temporal instability
Light sources receive a grade A to C in each of these areas. The better the performance, the higher the rating. The latest IEC 60607-7-2:2023 standard also allows for an SA classification (higher than A) in each field.
We have designed the Ossila Indoor Solar Simulator with these standards in mind. Dependent on your device type and desired spectral distribution (fluorescent, cool LED, warm LED, etc), you can achieve up to the following classifications with the indoor solar simulator.
| Spectral Coincidence | A |
|---|---|
| Spatial uniformity over 20 mm diameter area | B |
| Spatial uniformity over 25 mm diameter area | C |
| Temporal instability | SA |
Indoor Light Source Spectral Irradiance Graphs
These are spectral distribution graphs for the Ossila Indoor Light Simulator at two different illuminances (1000 lux and 200 lux). These illuminance levels are described in the IEC Standards and overall illuminance of this light source matches these values within a 5% error. This should enable indoor PV testing to a standard of A spectral coincidence.
Spatial Uniformity
Light simulators should distribute light evenly across a sample. The spatial uniformity rating demonstrates how uniform a light simulator's distribution is.
At 1000 lx, the Ossila Indoor Light Simulator achieves a spatial non-uniformity class B rating over a 20 mm diameter, making it ideal for testing small area devices. It can also achieves a class C rating over 25 mm diameter.
Temporal Instability
Temporal instability measurements assess the output consistency of solar or indoor light simulators. High temporal stability means the light output from the simulator is stable over a long time.
Here, we demonstrate that you can achieve consistent light output from our simulators, which is required for testing any devices including indoor PV. This should help you achieve classification SA Temporal Stability for your indoor PV measurements.
Classification for Solar Simulator
The Ossila Indoor Light Simulator will come fitted and calibrated with our indoor light filter. However, the Ossila Indoor Light Simulator is also calibrated to the same standards as our solar simulator. By simply removing this filter, you can still use the indoor light simulator to test solar cells.
Like for indoor PV, solar simulator light sources are classified solar simulators based on:
- Spectral match to a standardized solar spectrum
- Spatial non-uniformity
- Temporal instability
Solar simulators receive a grade A to C in each of these areas. The better the performance, the higher the rating. The latest IEC 60904-9:2020 standard, and the one which we follow, also allows for an A+ classification in each field.
| Spectral match | A |
|---|---|
| Spatial uniformity over 15 mm diameter area | A |
| Spatial uniformity over 25 mm diameter area | B |
| Spatial uniformity over 32 mm diameter area | C |
| Temporal instability | A |
Solar Simulator Classification Graphs
The Ossila Indoor Light Simulator can achieve the same AAA classification for testing outdoor solar cells as the Ossila Solar Simulator. The classification standards are included here. For more information, see the Solar Simulator page.
Indoor Light Simulator Features
Indoor Light Filter
Achieve class ABA illumination over a 20 mm diameter area at two different illuminance levels. Simply attach the filter to your Ossila Solar Simulator and set the indoor illumination level using the Solar Simulator Console software.
High-Performance LED Lamp
The Ossila Indoor Light Simulator uses LEDs to generate its light output. LEDs offer high efficiency, a long lifetime, good temporal stability, zero maintenance, spectral tunability, ozone-free operation, and no explosion risk.
Modular Design
The modular design gives you the freedom to switch between an indoor PV or solar cell testing system, allowing for versatile and adaptable testing setups. This flexibility enables seamless transitions between different testing environments, enhancing efficiency and convenience.
Easy-to-Use Software
Our free, downloadable software allows you to control the LED and set the indoor illumination level right for your needs. You can also control the lamp using a serial command library. This can be useful for specialist measurements and spectral output, including indoor PV measurement or low light intensity conditions.
Adaptable Setup
With a very small footprint, the Ossila Indoor Simulator is perfect for busy laboratories. It can also be used in closer spaces where space is limited, such as a glove box* or in a laminar flow hood. Setup the system on any benchtop with the included optical breadboard, or attach the stand to a larger optical bench surface.
* Not for use in volatile environments.
The Ossila Indoor Light Simulator can achieve up to ABA classification standards over a 20 mm area. This is perfect for testing small area devices, and ideal if you already use our 20 mm x 15 mm substrates. The Ossila Solar Simulator also delivers class ACA 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.
Indoor PV Report
Solar PV Report
Indoor Light Simulator Gallery
Software
The Ossila Solar Simulator Console enables you to control and customize the output of your indoor light simulator. You can choose the overall power level or control each LED in the individually to tailor the output to your specific requirements. It is included for free with your new indoor light simulator system, so you can get started on your research straight away.
In the Box
- LED Solar Simulator
- Indoor Light Filter
- Optical Breadboard
- Adjustable Height Stand
Resources and Support
Indoor Light Filter Installation
This guide shows you how to attach the Ossila Indoor Light Filter to our solar simulator. Once the filter is attached, you are ready to start testing your indoor photovoltaic devices across two different indoor illumination levels.
Read more...
How to Set Up Your Indoor Light Simulator Light Source
This guide shows you how to assemble the Ossila Indoor Light Simulator and Ossila Solar Simulator.
Read more...