**Abstract**

After the Introduction, which discuss the main advantages and disadvantage of LED from Economics angle, the entire Chapter is presented in three sections. 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. The section determines important economic indicators to evaluate direct and indirect benefits that can be achieved from using LED lights. 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 provides smart control using image recognition for cost saving of road lighting operation and gives economic analysis for this lighting system. 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. Comprehensive evaluation of the lighting system economics is discussed.

**Keywords:** LED economics, LED verses HID, lighting economic norm, control technology with LED, LED in industrial application smart road lighting

## **1. Introduction**

Light emitting diodes are rapidly developing in light output, color rendering, efficiency, and reliability. Achieving good level of maintenance-free in harsh environment, while keeping product competitive, is the largest challenge which only few manufacturers manage to achieve. The latest high quality LED technologies are already exceeding all other available technologies by all technical parameters. According to its numerous advantages, even higher initial cost quickly pays for itself due to vastly reduced cost of electricity and maintenance. But to fully benefit from the outstanding advantages it is important to educate and recognize the difference between low quality and latest state of the art LED technologies, since low quality LED alternatives have quickly spread all over the world [1, 2].

#### **1.1 General advantages of high quality LED lights**

#### *1.1.1 Less energy consumption*

LED lights use 40–80% less electricity and have at least 5 times the life expectancy than regular High Pressure Sodium (HPS) fixtures. LED lamps are 7 times more energy efficient than incandescent and twice as efficient as fluorescent lamps.
