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LED vs Halogen bulbs: Which is better?


LED light bulbs are becoming vastly superior to halogen, this is due to LEDs lasting over ten times longer than Halogen while consuming 85% less electricity. This means that by opting for LED bulbs in your home over halogen, you could save up to $600 per year on your lighting costs!


How does LED work?

LED stands for ‘Light emitting diode’. A diode is an electrical device with two electrodes, which only allows electricity to pass in one direction freely. Through the constant movements of the electrons in the semiconductor, light is produced.

How does a halogen work?

A halogen bulb works basically the same as an incandescent bulb. The biggest difference is the heat emissions because more electricity is converted into light than with an incandescent bulb. This means that normal glass can not be used, and instead of normal glass a heat-resistant quartz glass is used, so that the glass does not crack or pop due to the heat. Gas is added to the halogen bulb so that there are no black spots of mold/dirt/dust on the lamp as can happen with incandescent bulbs.


What the the differences between LED and Halogen


FeaturesLEDHalogenHeat emissions 10% – 20% of total energy80% – 90% of total energyPower consumption 8 watts90 watts Lifespan (hours)50,000 – 60,000 hours800 – 1,200 hoursCost (NZD)$15 – $25/bulb$5 – $8/bulbUV emissionsNoneMinimal


What is the disadvantage of LED?

High initial costs – The initial investment to purchase LED bulbs is higher than Halogen bulbs. This is due to the longer life and high energy efficiency of LED bulbs. However, a fast ‘Return on Investment’ is likely.

What are the disadvantages of a halogen bulb

The lifespan of a halogen bulb is on average only 1000 hours. This means that you more frequently have to purchase new halogen bulbs and spend a lot of time replacing your defective lights. They also become very hot and can not be touched during or just after usage as they require time to cool down. Due to halogen bulbs frequently reaching high heats, if installed incorrectly and too close to the roof insulation, halogen bulbs can heat up enough and can start fires. To connect halogen bulbs to the mains, a transformer is always required.

To summarise LED and Halogen both have pros and cons. LEDs being very pricey to initially purchase, and halogen losing most of its light energy to heat. However if LEDs are affordable with your budget, it is best to use LEDs, getting brighter lights, lights significantly less likely to start fires, and your electricity bill will thank you for it in the long run.