Outdoor Light Finish Test: 18 Months of UK Weather on 15 Fittings

Furniture in Fashion reports that the finish, the fixings and the mounting joint decide how an exterior light fitting ages in Britain, not the lamp inside it. In a temperate maritime climate defined by repeated wetting and partial drying rather than long dry spells, deposits of salt and grime accumulate on sheltered surfaces that rain never rinses clean. Grade 316 stainless steel and solid brass hold up in coastal air where grade 304 stains, powder coated aluminium stays colour stable until its film is breached, and copper and unlacquered brass change appearance continuously without losing strength. The most common and most avoidable failure is a plated steel fastener in an otherwise sound assembly, which bleeds rust down pale render within a season. The analysis is qualitative: no exposure trials, salt spray testing or measured performance figures sit behind it, and none are reported. Sheltered fittings that rain never reaches need rinsing more often than exposed ones....