Corrosion Corrosion is avoided by the use of superior materials, surface finishes and by our designers' awareness of electrolytically compatible materials. For example, Spectra uses stainless steel fasteners with cadmium plated threaded inserts to avoid thread binding that would otherwise occur in raw aluminium. Testing Each Spectra product is electrically tested for correct and safe operation and stamped for compliance to our high manufacturing standards prior to packaging. Products are thermally tested to establish the maximum continuous ambient rating for each model. Each IP68 rated luminaire is pressure tested underwater to ensure long service life.
Packaging too is tested for suitability for each product range.