Comparison between LED Vs Incandescent VS CFL lights

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LED vs CFL vs Incandescent Lights: Which is Better for You?

When it comes to choosing lighting solutions for homes or offices, the three most common options are:

  • Incandescent bulbs (traditional yellow bulbs),

  • Compact Fluorescent Lamps (CFLs), and

  • Light Emitting Diodes (LEDs).

Each has its own advantages and disadvantages, but LEDs have emerged as the most energy-efficient and sustainable choice. Let’s break down the comparison.



1. Lifespan Comparison

  • Incandescent Bulbs: ~1,200 hours

  • CFLs: ~8,000 hours

  • LEDs: ~50,000 hours

👉 Clearly, LEDs last up to 40 times longer than incandescent bulbs and more than 6 times longer than CFLs, which means fewer replacements and reduced waste.

2. Energy Efficiency (Power Consumption vs Lumens Output)

LEDs produce the same amount of light (lumens) with much lower wattage.

Lumens (Brightness)

LED (Watts)

Incandescent (Watts)

CFL (Watts)

450 (≈ 40W bulb)

4–5 W

40 W

9–13 W

800 (≈ 60W bulb)

6–8 W

60 W

13–15 W

1,100 (≈ 75W bulb)

9–13 W

75 W

18–25 W

1,600 (≈ 100W bulb)

16–20 W

100 W

23–30 W

2,600 (≈ 150W bulb)

25–28 W

150 W

30–55 W

💡 Result: Switching from incandescent to LED can cut energy use by up to 85%, and from CFL to LED by around 40–50%.

3. Cost & Payback Period

  • Initial Cost: LEDs are more expensive upfront than CFLs and incandescent bulbs.

  • Payback Period: Despite the higher price, LEDs pay back within 6–8 months (depending on electricity tariffs and daily usage). After that, they provide pure savings on electricity bills.

4. Environmental Impact

  • Mercury Content: CFLs contain toxic mercury, while LEDs are mercury-free.

  • CO₂ Emissions: Lower energy consumption by LEDs reduces greenhouse gases, sulfur oxides, and even nuclear waste.

  • Heat Emission: LEDs emit very low heat compared to CFLs and incandescent bulbs, making them safer and more efficient.

  • Cold Temperature Performance: CFLs fail below -10°C, while LEDs perform well in all temperatures.

5. Key Takeaways

✔️ LEDs are the most energy-efficient, eco-friendly, and long-lasting lighting option.
✔️ CFLs are better than incandescent bulbs but have mercury hazards.
✔️ Incandescent bulbs are outdated — high energy use, short life, and high replacement costs.

Related Resource

Want to know how LEDs work internally? Read here:
👉 Working Principle of Light Emitting Diode

Disclaimer

This article is for educational and informational purposes only. Technical specifications, lifespan, wattage, and electricity savings may vary depending on brands, usage conditions, and regional electricity tariffs. Readers should verify details with manufacturers or utility providers before making purchasing decisions.


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