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.

Specifications

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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 graph measured at 1000 W/m2 (1 Sun)

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
Lamp 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")
Weight	600 g (1.32 lbs)

Ossila LED Solar Simulator

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 fluctuations 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.

Spectral irradiance classification graph

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.

Spatial Uniformity

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.

Temporal Stability

LED Solar Simulator Features

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* Not for use in volatile environments.