Question
Download Solution PDFWhich of the following lighting technologies is typically integrated into an energy efficient light source for increased efficiency?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Energy Efficient Lighting Technologies
Definition: Energy efficient lighting technologies are designed to provide the same amount of light as traditional lighting but use less energy to do so. These technologies help reduce energy consumption, lower electricity bills, and decrease the environmental impact associated with energy production.
Correct Option Analysis:
The correct option is:
Option 1: प्रकाश उत्सर्जक डायोड (Light Emitting Diode - LED)
LEDs are semiconductor devices that emit light when an electric current passes through them. They are known for their high energy efficiency and long lifespan compared to traditional lighting sources.
Here are some key points about LEDs:
- Energy Efficiency: LEDs consume significantly less power compared to traditional incandescent and fluorescent lamps. They convert a higher percentage of electrical energy into light rather than heat.
- Longevity: LEDs have a much longer operational life, often lasting up to 25,000 to 50,000 hours or more, reducing the need for frequent replacements.
- Durability: LEDs are solid-state lights, making them more durable and resistant to shock and vibration compared to other lighting technologies.
- Environmental Impact: LEDs do not contain harmful substances like mercury, which is found in some fluorescent lamps. This makes them more environmentally friendly both during use and disposal.
- Instant Lighting: LEDs light up instantly to full brightness without the delay common in some other lighting technologies.
- Design Flexibility: LEDs can be designed in various shapes, sizes, and colors, providing greater flexibility for different lighting applications.
Important Information
To further understand the analysis, let’s evaluate the other options:
Option 2: तापदीप्त लैंप (Incandescent Lamp)
Incandescent lamps produce light by heating a tungsten filament until it glows. These lamps are highly inefficient as a significant portion of the energy is converted to heat rather than light. They have a short lifespan and are being phased out in many countries due to their poor energy efficiency.
Option 3: प्रतिदीप्ति ट्यूब (Fluorescent Tube)
Fluorescent tubes are more energy-efficient than incandescent lamps but still less efficient compared to LEDs. They work by passing an electric current through a gas, which produces ultraviolet light that causes a phosphor coating inside the tube to glow. Fluorescent tubes contain mercury, posing environmental and health risks if not disposed of properly.
Option 4: उच्च तीव्रता वाले विसर्जन लैंप (High-Intensity Discharge Lamp)
High-Intensity Discharge (HID) lamps, including metal halide, high-pressure sodium, and mercury vapor lamps, are used in applications requiring high light output, such as street lighting and large indoor spaces. While more efficient than incandescent lamps, they are still not as efficient as LEDs. HIDs also take time to reach full brightness and contain hazardous materials like mercury.
Conclusion:
In conclusion, Light Emitting Diodes (LEDs) are the most energy-efficient lighting technology among the options provided. They offer numerous advantages, including high energy efficiency, long lifespan, durability, and environmental friendliness. These characteristics make LEDs the preferred choice for integrating energy-efficient lighting solutions.
Last updated on May 29, 2025
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