This product has been replaced by the FlatMaster 150 (under the same price)
The Pegasus Astro FlatMaster 120 is our flatfield electroluminescent panel. It provides a uniform source of illumination up to 120mm and produces high quality flat field frames for astrophotography and photometric captures.

Dimmable EL Panel
Unlike other EL panels in the market, the FlatMaster can easily adjust its brightness. Forget sheets of paper between your telescope and the panel. Remote control the EL lamp of your panel. Store the brightness per filter and immediately retrieve the value you need.
Manual Button
Device has a small push button which sets five (5) levels of brightness. In case you would like to manually operate the FlatMaster, no problem, just click the push button to control the brightness.

One cable operation
Only one mini USB cable provides power and control of your panel.
Standalone Software
Software allows to set filter names and store / retrieve brightness levels of your FlatMaster panel

Native support by most popular imaging software
FlatMaster is supported by most popular imaging software like SGPro, APT and Voyager
![]() | Sequence Generator Pro |
![]() | Voyager Astrophotography Automation |
![]() | Astrophotography Tool |


Technical Specifications
Type | Electroluminescent Panel (White) |
Dimmable | Yes – (0-100%) |
Manual Push Button | 5 brightness levels |
Usable diameter of circle | 120mm / 4.72 inches * We are going to provide larger sizes |
Power requirements | 5V DC provided by USB mini cable |
Size | 180 mm x 180 mm x 9mm |
Weight | 300g |