• Design Service
    Free design service A dedicated, fully qualified, in-house design team is at your service completely free of charge. Providing comprehensive lighting designs bringing designs to life for road, urban, tunnel, high-mast, sports and area lighting schemes. We also have a specialised PFI design and support service.
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  • Cost Calculator
    Cost Calculator The pressures on reducing energy, maintenance costs and operating costs will continue to increase so that climate change objectives can be met. Understanding the total cost of an installation over its whole life is becoming increasingly important as budgets become tighter and long term planning is required. The Total Cost of Ownership Tool from WRTL allows you to compare the complete cost of alternate lighting solutions alongside Stela so that you are able to make informed decisions on long term sustainability.
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Photometrics

The photometric footprint is precise and the control of light spill, light pollution and glare are not ignored in achieving uniform lighting of typical road geometries from 7 to 12 m width at 6 to 8m mounting height. Spacing performance is deliberately designed to suit most existing installations where replacement on a point for point basis is proposed.

The data files available to download below will work with Lighting Reality or other compatible software and allow you to experiment with new or replacement designs.

Download data files (.zip archive)

Note: To open this file you may need archiving software such as WinZip. You can download WinZip for free here.

Stela product information