
Photoview - Photometric and Radiometric Data Management in the Visible, Horticultural and Radiometric (UV)
Spectrum
- The calculation has been refined to eliminate discrepancies with the results obtained using the IES Spectrum Calculator

- The G-Index (Spectral Index G) has been introduced in accordance with regulations in Andalusia
- the G-Index is a scientific metric used to quantify the amount of blue light (wavelengths between 380 and 500 nm) emitted by an artificial light source relative to the total visible light
- this index has become an international benchmark in the field of sustainable public lighting, thanks to Andalusia (Spain), which was the first to introduce and regulate it within its policies aimed at combating light pollution

Emergency
Emergency Luminaires – Function updated to comply with the new EN 1838-2025 Standard
Photoview Web - Server Web for the automatic generation of photometric files, graphics and tables via the Web
Litecalc – Lighting Desing Project in the Visible, Horticultural and Radiometric (UV) Fields
General
- Aiming via Axis of Maximum Intensity – It is now possible to aim a luminaire based on its axis of maximum intensity—a feature particularly useful for positioning asymmetric floodlights. The new function interacts with the original light axis aiming function, making the task of aligning the luminaires particularly simple

- Excel Table for EN 12464-1 and 12464-2 – An Excel file has been introduced to help input the regulatory standards required for calculating lighting in indoor and outdoor workspaces, in accordance with the EN 12464-1 and 12464-2 standards
- Real Time Calc – The feature that automatically displays horizontal illuminance values on various calculation surfaces—while positioning the lighting fixtures—has been enhanced and improved

Dxf Export
Aiming with the relative references of the luminaires has been added to the FILE/Export Dxf function
Road Lighting
Dynamic Road Surface TabR Extension - A new road surface TabR management function has been implemented, allowing you to freely configure the table according to your needs. Simply enter the appropriate Tanγ (Gamma) values up to a value of 20

Road Plus
The classes for performing automatic road calculations have been extended to include S and CE
Calculations and Results
Export Results for TripodLux System – A feature has been introduced to export the calculated lighting parameters for sports facilities—such as Eh, Ev0°, Ev90°, Ev180°, and Ev270°—for use with the TripodLux automated measurement system for sports lighting. This enables a direct comparison between measured and calculated values
Printouts
The printouts of the results have improved and a sorting function based on surface, calculated parameter (illuminance, luminance), observer, or zoom has been added
Gonwin - Program for the management of OxyTech goniophotometers
The management of the THD% parameter for both current and voltage has been implemented
Watch the introductory video:
How to update the program
To update the program, simply launch LITESTAR 4D and respond affirmatively to the update proposal by pressing the Download button