Nowadays LED lighting becomes more and more the focus of attention. Despite higher production and purchase costs, the high durability of LEDs, their long lifetime and easy disposal (no mercury pollution) render them highly efficient and an energy-saving alternative for all kinds of lighting.
Regular incandescent light bulbs are very inefficient; up to 95% of the energy consumed by an incandescent light bulb produces heat, not light. More efficient are compact fluorescent light bulbs which use up to 75% less energy per bulb.
However, LED light bulbs use up to 90% less energy than, far less than any other light source, and therewith contribute considerably to energy conservation.
The efficacy of LED sources, measured in lumens per watt, is overtaking that of incandescent and halogen sources. LEDs stand out through their low energy consumption: they typically use 10-20% of the energy that a normal incandescent light uses. Their extreme longevity which can last up to 50,000 hours ensures less maintenance cost for light installations, less usage of bulbs and therewith also less waste for the environment. Thus state-of-the-art LED lighting systems support energy conservation and cut significantly maintenance costs. For example, the initial costs of an incandescent source may only be fifty cents; however, its energy consumption will easily cost more than ten times over its relatively short life. When a new source must be purchased, the cycle begins anew.
In times of growing environmental awareness, the ecological consciousness of LEDs (no usage of mercury) directly meets the demands of today's society. The absence of heat emission and UV-radiation render LEDs perfect suitable and safe for everyday use, as well as for areas where sensible lighting is needed (e.g. illumination of artworks in museums or presentation of food in supermarkets).