43 — Dialux

Indoor offices suffer from glare. Dialux 4.3 contains a dedicated UGR module that calculates the psychological discomfort of lighting. You can place the observer at specific coordinates and run the UGR tabular method as defined by CIE 117-1995.

Use (latest version: 13 or 14). It is still free, supports modern luminaires, BIM, and produces legally valid calculations for permits. DIAL GmbH provides free training videos and a community forum. dialux 43

DIALux 43 – Old, but gold.

While the software has progressed to version 4.13, many long-time users still search for "4.3" due to its reputation for stability. Indoor offices suffer from glare

Click the (Start Calculation) to run the simulation. Standard Mode: Good for most checks. Use (latest version: 13 or 14)

Always set your maintenance factor (e.g., 0.80 for clean environments) to account for aging and dust. 3. Adding Luminaires (The "Plug-ins")