Energy Efficient Lighting

Drastically rediuce your power bill just by changing your light bulbs.

It is hard to believe that such a simple act as converting lighting to LED can have such an impact on power bills, energy saving and carbon emissions.

LED lighting is about 96% more efficient than incandescent lamps, as incandescent bulbs convert around 95% of the energy emitted to heat instead of light.  As such an LED bulb requires far less energy to produce the same amount of light, which translates into a reduction in your lighting bill from over $493 per annum to around $49!

Low Power Usage

An LED light consumes much less energy than its incandescent counterpart.  A 60-watt incandescent bulb will consume 110kW of electricity each year if left on for 5 hours a day, whereas a 6 Watt LED light will draw only 11kW of electricity – just 10%.

In a home with 30 light bulbs, that equates to 60kW incandescent bulbs using 3,285kW of power and the same number of LED lights consuming just 392kW of electricity.

If for the sake of comparison, we say a kW of electricity averages 28c, your incandescent-lit house will cost $920 annually for lighting, whilst your LED-equipped house would cost just $92 to run each year.

Long Life

That’s not the only way to save. LED light bulbs have an average life expectancy of 30,000 - 50,000 hours whereas a standard incandescent light bulb has an expectancy of just 1200 hours. That means that by the time just one LED light bulb requires replacing, you would have purchased and changed at least 25 incandescent light bulbs for the same light.

In other words, leave a light on for 4 hours a day, 7 days a week, and  your LED bulb would be expected to last for 20 years or more. Compare that to less than one year with a standard incandescent bulb. Even left on 24 hours a day, 7 days a week, the LED light would last more than 3.5 years without requiring changing.

What About CFL?

Whilst more energy efficient than incandescent lighting, CFL, or Compact Fluorescent Lighting, when compared to LED lighting, will still produce more than twice as many carbon emissions, last an average of 6 times less, consume twice as much energy for a comparable bulb and need to warm up. These bulbs also contain mercury, a very toxic substance posing danger to yourself and the environment.

 

LEDbulbs

 

Comparison of LED to CFL and Incandescent Bulbs

- Based on a home using 30 light bulbs.

SINEWAVE. The science of energy efficiency