DIALux

DIALux is Windows software for lighting design. Its free plan provides core lighting-design functions and access to luminaires from DIALux member manufacturers. The Unlock Non-Members plan costs €5.99 per month and adds luminaires from manufacturers outside that membership. Pro is listed at €19.99 per month in Region 2 and €29.99 per month in Region 1; it includes non-member luminaires, IFC import and export, project-data export to office formats, and custom report layouts. Monthly prices depend on region, and annual subscriptions are discounted. A 30-day trial is listed. DIALux includes rendering tools and construction-document capabilities and supports IFC, but it is not a BIM authoring tool. The listed platform is Windows, and the company headquarters are in Lüdenscheid, Germany. The free tier is priced as free, while the paid plans address broader luminaire access and additional export and reporting needs.

DIALux offers a free starting tier for core lighting work, with paid options expanding luminaire access and project exports. Windows availability and the absence of BIM authoring should guide platform and workflow decisions.

DIALux suits Windows users designing lighting schemes who need rendering or construction-document tools. The paid tiers fit projects requiring non-member luminaires, IFC exchange, office-format exports, or custom reports.