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Product Code G2009A1
Price $2,000 ex. VAT

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LED solar simulator stand-alone solar simulator head

For integration into existing or custom systems

The most cost-effective way to buy the Ossila LED Solar Simulator Lamp, the stand-alone solar simulator head is the same part as the one sold with the full product package and solar simulator I-V test system bundles. By offering the Ossila LED Solar Simulator Lamp without the z-stage or breadboard, we can provide the same technical features at a much lower price. This is ideal if you would like to add a solar simulator to your existing set up or custom system and have no need for the additional hardware that comes with the full product package.

Identical to the LED solar simulator head sold with the adjustable height z-stage or Solar Cell I-V System, the stand-alone solar simulator lamp unit is class AAA over a 15 mm diameter circular area (using the latest IEC 60904-9:2020 International Standard). The lamp is suitable for use over larger areas too, with a class B spatial non-uniformity rating for areas up to 25 mm in diameter and a class C rating for diameters up to 32 mm.

LED solar simulators offer several advantages over arc lamp solar simulators. They are cheap to run thanks to the high efficiency of LED lights and require zero maintenance. Arc lamps, by comparison, waste a considerable amount of energy as heat and need at least 30 minutes to warm up. The Ossila LED Solar Simulator Lamp is ready to use just a few minutes after you first turn it on.

Why Should You Buy the Ossila LED Solar Simulator Lamp?

The Ossila LED Solar Simulator Lamp 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.


LED Solar Simulator Lamp long operating lifetime

Long Lifetime

10,000 operating hours

LED Solar Simulator Lamp minimal warm-up time

Minimal Warm-up Time

Ready to use and measure

LED Solar Simulator Lamp cheap-to-run


Highly efficient LED bulb

LED Solar Simulator Lamp spectral tunability

Spectral Tunability

Tune with powerful software

LED Solar Simulator Lamp compact size

Compact Size

Portable design

LED Solar Simulator Lamp zero maintenance

Zero Maintenance

No high maintenance fee

LED Solar Simulator Lamp no explosion risk

No Explosion Risk

LED-based, steady state

LED Solar Simulator Lamp Two-Year Warranty

Two-Year Warranty

Covered by Ossila Warranty


More Solar Simulator Features

  • Lightweight body: 600 g (1.32 lbs)
  • Head dimensions (L x W x H): 10.5 cm x 9.0 cm x 8.0 cm (4.13" x 3.54" x 3.15")
  • Easy-to-use software that comes free with the Ossila LED Solar Simulator Lamp

More information available in specifications tab.

Solar Cell I-V Test System

  • Fast and Accurate
  • Metric Lifetime Tracking
  • Compact

Available From £2100.00

Technical Specifications

General 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 Classification
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

Spectral Irradiance Graphs


Spectral irradiance graph
Spectral irradiance graph measured at 1000 W/m2 (1 Sun)


The programmed spectral irradiance of the Ossila LED Solar Simulator Lamp is shown in the graph above. The Ossila light source is initially calibrated so that it emits a total integrated power of 100 mW/cm2 (1 Sun) over the wavelength range 350 nm – 1000 nm. The Ossila LED Solar Simulator Lamp achieves a Class A rating for each wavelength range defined by solar simulator standard guidelines. This calibrated Class AAA spectrum is emitted only a few seconds after powering up.


Spectral irradiance graph
Spectral irradiance graph measured at 0.7 Suns


The Ossila LED Solar Simulator Lamp also allows you to adapt the output spectrum of your lamp as you desire. The above graph shows a spectral distribution at 0.7 Suns to demonstrate AM1.5G spectral match more clearly to the AM1.5G spectrum. Whether you value spectral match or total power irradiance, the Ossila LED Solar Simulator Lamp can adapt to meet your needs. For more information on how we present our solar simulator spectral data here, read our guide on interpreting spectral irradiance graphs.

Spectral Irradiance

The spectral match classification measured how well a solar simulator replicates the solar spectrum in terms of wavelength distribution. At 1 Sun irradiance at 8.5 cm, the Ossila LED Solar Simulator Lamp acheives Class A output in all wavelegnth catagories. At this irradiance, the Ossila LED Solar Simulator Lamp achieves a Class A classification for spectral irradiance.


Spectral irradiance classification
Spectral irradiance classification graph


Spatial Uniformity

Solar simulators aim to distribute light uniformly across a sample, replicating sunlight. The spatial uniformity rating gives a measure of how uniform a solar simulator's distribution is.

At the working distance of 8.5 cm and output power of 1 sun, the Ossila LED Solar Simulator Lamp 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 the Ossila LED solar simulator Lamp with ABA or ACA classification.


Spectral non-uniformity graph
Spatial Uniformity


Temporal instability

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

The temporal instability graph proves that the light output from the solar simulator is stable over a long time frame, so it achieves a Class A Temporal Instability classification. This means you can conduct long-term experiments with the Ossila LED Solar Simulator Lamp without worrying about spectral fluctuation. This includes measurement such as solar cell lifetime measurements or experiments to measure light degradation effects.


Spectral irradiance graph
Temporal Stability


Mounting information

The solar simulator lamp comes with a permanent mounting bracket attached to the rear. This can be used to afix the lamp to a custom gantry. The dimensions and spacing of the mounting holes are shown below. All holes are unthreaded.
LED Solar Simulator Lamp mounting points
Solar simulator mounting bracket (left) and mounting hole locations

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

LED Solar Simulator Lamp 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

Customise 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

Software Requirements

Operating System Windows 10 or 11 (64-bit)
CPU Dual Core 2 GHz
Available Hard Drive Space 142 MB
Monitor Resolution 1440 x 960
Connectivity USB

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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