Sill Lighting has just introduced its latest 'cool glass' heat-controlled 484 buried uplights. This newly developed fitting designed for 70W and 35W metal halide lamps, has undergone extensive testing in Sill's respected electrotechnical laboratories for temperature rise according to the EN 60598 standard. This development work has resulted in the fitting achieving a maximum temperature on its top glass of 56.5°C in a 15°C ambient, some 15°C lower than the recommended standard.
A number of special features have allowed the buried uplight to achieve this result. They include a lowered reflector, heat shielding to components for long and reliable life, two IR filters, a lamp shutter and double glazing for the top glass.
These high quality IP67 buried uplighters have diecast aluminium bezels for the pressure tight sealed in safety glass, finished with a stainless steel trim. The body is made from corrosion resistant powder coated high quality steel which is just 210mm deep making installation on-site easier where there are often very shallow groundworks.
As well as its cooler operating temperature, the top glass lens is engineered to withstand compressive loads of one tonne. Such luminaire engineering provides the Sill 484 series buried uplights with the best possible performance under demanding conditions.
