IN-GROUND AND UNDER-WATER LIGHT FIXTURE WITH CERAMIC HOUSING
High salt content in the soil or in the water are known corrosive obstacles in In-Ground and Under-Water lighting.
Rapid deterioration of aluminum fixture housings has been observed in all high-salinity areas. The aggressive corrosive effect of salinity can potentially ruin a luminaire well within a year of installation in some areas.
This has become even more critical since the introduction of LED lighting, in which good thermal conductivity is of critical importance. Due to the increased requirement for good thermal conductivity, some previous approaches to corrosion resistance (the use of stainless steel and plastic housings) no longer provide ideal solutions because of their poor thermal conductivity, and other, component-integration related issues.
Also, the use of electrically conductive metal housings may not be ideal in some of these applications.
High salinity is naturally present is various areas, i.e. throughout most of the Persian Gulf region, in coastal areas, etc. Areas remote from saltwater bodies can also have high soil salinity, such as in the state of Colorado, US. High salinity can also be induced by human action, such as by salting of the roads and walkways for the purpose of de-icing.
Salinity does not only stay in the soil, it finds its way into the concrete in which the luminaires are encased, and the water that might enter the luminaire’s insertion sleeve. Other materials, such as certain artificial fertilizers can also have potent corrosive effect.
LUMINAIRE HOUSINGS MADE OF ADVANCED CERAMIC MATERIALS provide permanent solution to luminaire failure due to corrosion.
Some of these ceramics have good thermal conducting characteristic, they are electrically insulating, and are not affected by salt, or other corrosive substances that are typically found in architectural in-ground and under-water applications.
PRECILUX’ in-ground and under-water luminaires with advanced ceramic housing is your best solution in applications where permanent corrosion resistance is a requirement.
The principle provides excellent permanent solution for applications in
landscape lighting, outdoor architectural up-lighting, resorts, plazas, corporate parks, residences, etc. in high salinity areas, and where walkways and roads are de-iced by salting.
The principle is set forth, and is protected by various patents in the EU, and elsewhere.