Labarazzi – the unique flicker generator
The Labarazzi® TLA Generator is your tool for creating flickering light for testing and demonstration.Use the preset flicker signals or create your own. Test your flicker meter or video camera. Use the Labarazzi flicker generator for quality testing, lighting education and research projects.

See a live flicker signal
Viso Systems Labarazzi is the only commercially available TLA generator in the world. Labarazzi is a professional laboratory and demonstration light source that produces precise temporal light artifacts (TLA). The Labarazzi contains a 1100 lumen LED light source.
Signal presets
The Labarazzi offers 26 preset flicker signals. Navigate between the signals with indications of waveform, frequency, flicker percent, duty cycle, modulation depth, PstLM and SVM.
Design your own signal
Design your own custom flicker signal. Choose your waveform (square, saw, triangle, sine and cosine) and add frequency, modulation depth and duty cycle. Then view the result with the built-in LED 3000K (CRI 80) light source.

Using the Labarazzi flicker generator
The Labarazzi is a rugged, laboratory-style flicker generator. It can be used as a stand-alone unit or controlled by the Viso Light Inspector software.
The Labarazzi can be used in educational settings to demonstrate various types of flicker, stroboscopic effects, and phantom array effects.
Your choice of flickering light can be experienced immediately via the dimmable built-in LED light source. The signal can also be routed to an external device, while the built-in LED can be turned off.
The Labarazzi can be placed on a table with the LED facing down and well protected from direct view. It can also be placed on a table or shelf with the light source facing backwards to light a wall without glare.
The Labarazzi has a USB port to connect to the Viso Light Inspector software. The software allows you to control the Labarazzi and add or remove flicker curves stored in the unit. Custom flicker curves can also be created or added from Excel/.csv and stored in the device, including all flicker parameters such as SVM and PstLM, which are automatically calculated and displayed with all flicker presets.

Main applications
Demonstration of flickering light – in education and sales
Temporal Light Artifact research
Test of digital cameras and video cameras for TLA interference
Flicker tester calibration
Downloads
Get more information
Product images

See the flickering light directly with the built-in light source (1100 lm, 3000 K) or turn it off

Choose your orientation: Labarazzi can lie on a shelf or stand upright on the table

Easily navigate through all options via the multi-function selector button

Easily connect to Viso Light Inspector software via USB, and load custom signals. BNC plug for 0-3 V signal output
Labarazzi Specifications
Built-in Light Source
0- 1100 lm (0-300 mA)
CRI 80, Warm white CCT 3000 K
Waveforms
Flat = DC / sine / square / triangle / saw / cosine / PWM / Custom
Ranges
Modulation depth 0-100%
Frequency bandwidth 0-100,000 Hz
Display parameters
Frequency, Flicker Index, Modulation Depth, SVM, PstLM, Duty Cycle
Housing material
Powder coated steel
Cord
Mains cable with Schuco male plug
Weight
1.3 kg (2.2 lbs)
Power supply input
85 to 264 VAC, 50/60 Hz, 40W
Other Viso Accesories
Add a LabTemp 3-port temperature probe system for monitoring ambient lab temperature and 3 temperature spots
Easy positioning of your LabSpion sensor. Replace your tripod with a rail-mount for your sensor including distance detector
Upgrade your existing sensor to provide a broader measurement range (eg. UV) or higher accuracy
The LabFlicker instrument records all contemporary flicker metrics including PstLM and connects to all Viso systems