In order to make such mission become truth, the first important thing should be done is to lower the unit cost and secondary to have a proper and reliable power circuit with less loading and less electrical faults probabilities. However, still protection circuits such as current, voltage and temperature are still needed to be revised to increase the reliability. LEDs are now able to match the brightness and warmer color temperature that consumers desire from their outdoor lighting system.īy comparing the power characteristics and lighting characteristics for LED verse traditional lighting, it can be concluded that using LED lighting to replace the traditional lighting devices are possible and recommended. A study completed in 2014 concluded that color temperature and accuracy of LED lights was easily recognized by consumers, with preference towards LEDs at natural color temperatures. īy about 2010 LED technology came to dominate the outdoor lighting industry earlier LEDs were not bright enough for outdoor lighting. Many lighting application use HID bulbs for the main lighting systems, although some applications are now moving from HID bulbs to LED because of the LED advantages. Its presence in the arc plasma greatly increases the intensity of visible light produced by the arc for a given power input, as the metals have many emission spectral lines in the visible part of the spectrum. Once the arc is started, it heats and evaporates the metallic admixture. The noble gas enables the arc’s initial strike. This tube is filled with noble gas and often also contains suitable metal or metal salts. High-intensity discharge lamps (HID lamps) are a type of electrical gas-discharge lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube. The comparison shows that relamping of HID fixture is required to be done 5 times to achieved one base life time of LED, considering the relamping is required when the Lumen reduces to 70% of initial lamp Lumen. Lifetime and Lumen maintenance compression between LED and HID lights is illustrated in Figure 1. The long life span reduces maintenance expenses and makes these bulbs particularly suitable for difficult to reach locations and for streetlights where maintenance costs can be significant. So not only does the LED have a longer life span than the conventional lamp, but it stays brighter longer than other lamps. This provides a great cost savings by itself.Īlso the loss of brightness or lumen depreciation is slower over the life of an LED lamp than that of sodium or other lamp. This result in less expense in replacing the lights themselves but also the labor to replace the lamp is needed less often. LED lights last much longer than conventional lamps (4 to 8 times longer). ![]() Comprehensive evaluation of the lighting system economics is discussed. In third section, design of intelligent daylight utilization to achieve efficient indoor lighting intensity control for LED lights that are used in industrial building is provided. The section provides smart control using image recognition for cost saving of road lighting operation and gives economic analysis for this lighting system. In second section an efficient, safe and cost effective design to automate LED lighting system used for long roads with low-traffic is provided. The section determines important economic indicators to evaluate direct and indirect benefits that can be achieved from using LED lights. The first section discusses the economic benefits of replacing different types and rating of outdoor HID lights, typically installed in an industrial plant, with LED lighting. ![]() ![]() After the Introduction, which discuss the main advantages and disadvantage of LED from Economics angle, the entire Chapter is presented in three sections.
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