Landscape Lighting low voltage outdoor lighting design and installation service since 1974
Every made object has a maintenance component. Precision equipment mounted outdoors delivering controlled and intentional lighting is no exception. In actuality, good quality outdoor lighting equipment has very low maintenance requirements. The reliable operation of lighting equipment indoors or out is a function of lamp life. Since performance, operating cost and maintenance are almost solely a function of lamp type it is worthwhile to describe in detail this aspect of a low voltage system.
An LED is a semiconductor chip that generates light when current is applied to it, which is very different from any other technology currently used in lighting. There are also different types of LED emitters that have different characteristics that affect their applicability in lighting.
The long life of properly designed LED products makes them ideal for a situation where light failure can cost a lot of time, effort, and money. Examples of such are high-mounted recess and track lighting, where changing the bulb could be both dangerous and time consuming (such as in a hotel lobby, or in the atrium of a building). Given our 40,000 hour useful lifespan of our products, years of trouble free lighting can be achieved, easily saving money in labor and replacement costs for the equivalent of three to four CFL changes, or ten to fifteen halogen lamp changes. Please note that we define useful life as when the LEDs depreciate to 70% of their initial output, in lumens. The lamp with continue to operate far beyond that, but with additional lumen depreciation.
Our most powerful lamp to date is a Par 36 shape that uses a mere 15 watts of power to produce up to 1650 lumens of light in a compact PAR30 shape. Compare that to a 560-watt PAR30 or a 75W BR30 producing less light, the LED will outlast 10 of these bulbs, and you can see the savings.
Low voltage outdoor lighting for residential applications is the sole topic addressed on this web site. The text is based on direct experience with low voltage lighting over a period of 40 years and over 5,000 outdoor projects.