LED Light Sources
Powerful and reliable illumination is cruicial for many experiments and research fields including, spectroscopy experiments, fiber optic setups, photovoltaic testing, and other photosensitive applications. Explore our range of LED light sources, with different designs and specifications to suit your light source requirements.
LED light sources are an energy-efficient and cost-effective option for sourcing a high quality spectrum. With minimal warm-up times, you can take fast, consistent measurements in experiments over and over again thanks to the long bulb lifetime.
Buy LED Light Sources
Comparing Ossila Light Sources
For Spectroscopy
| White Light LEDs | Monochromatic LEDs | Tunable Light Source | |
|---|---|---|---|
| Type | Broadband | Monochromatic | Monochromatic |
| Suitable measurements |
Absorbance, transmission, and reflectivity measurements |
Photoluminescence, optical density, and measuring concentration of certain molecules |
Absorbance, photoluminescence, fluorescence, transmission, and excitation / emission spectra |
| Advantages | Long bulb lifetimes | Long bulb lifetimes | High versatility |
| Cost | Low | Low | Mid-range to high |
| Emission Spectra |
Broad spectrum (360 nm – 900 nm for Ossila Broadband Light Source) |
Well-defined narrowband emission (370 nm for Ossila USB UV Light Source - 700 nm for the Ossila USB Infrared Light Source) |
Narrow emission but over a wide wavelength range (Ossila Tunable Light Source can select a wavelength 380-1000 nm with < 1 nm accuracy) |
For Photosensitive Testing
| LED Solar Simulator Lamp | With Indoor Light Filter | |
|---|---|---|
| Spectral match | A | A |
| Spatial uniformity over 15 mm diameter area | A | B |
| Spatial uniformity over 25 mm diameter area | B | C |
| Spatial uniformity over 32 mm diameter area | C | N/A |
| Temporal instability | A | SA |
Resources and Support
Choosing a Light Source for Your Spectrometer
The light source you will need to use depends on the measurements you are doing.
Read more...
Solar Simulator Light Sources
Choosing the right light source for your solar simulator is one the most important decisions to make when setting up a PV testing laboratory.
Read more...
How to Check Solar Simulator Calibration
It is important to ensure that your solar simulator is outputting a consistent spectral output. Different solar simulators will have different bulb lifetimes.
Read more...