New ILP Guidance Note: GN11 Maintenance Factors is Available

by | Jan 29, 2020

The introduction of solid-state light sources has caused some confusion regarding how their deterioration in light output, due to aging and environmental factors, should be determined. This document aligns with the latest industry thinking for LED lighting and high intensity discharge variants.

The publication of GN11/20 is intended to give advice to lighting managers, engineers, designers and equipment specifiers to enable information from manufacturers or suppliers to be understood in a consistent manner.

The document reviews the latest British, European and International Standards, using this as the basis for its recommendations to help eliminate confusion by demonstrating the development of a simpler, more consistent methodology, that takes into account the differing parameters of LED light sources compared with high intensity discharge lamps.

View the document here.

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