LED lights power consumption and electricity cost

LED lights have become very popular because they are more efficient than other light bulbs and save electricity.

Still, the LED lights are more expensive than other light bulbs and this factor must be taken in consideration when considering to purchase LED light bulbs.

How much electricity do LED lights use

As shown as the picture below, the LED light bulbs are much more efficient than traditional light bulbs.

Under the same conditions, and when compared to a LED light bulb:

A CFL light bulb will use around 75% more electricity

An incandescent bulb will use around 625% more electricity.

For a better perspective, the table below shows the power consumption of equivalent light bulbs as well as their brightness in lumens.

Light bulbs conversion tables

Additionally, this other table also provides valuable information:

> Light bulb energy efficiency: How efficient the light bulb is

> Light bulb lifespan: An approximation on how many hours will the bulb last before having to change it

> Light bulb electricity yearly cost: An approximation on the yearly electricity cost.

Finally, also note that not only the electricity consumption must be taken in consideration when deciding what type of bulbs to install at home. Other factors like the bulb cost and the bulb lifespan must be taken in consideration.

The table below we are making a comparison between an incandescent 60 Watts bulbs and the equivalent CFL and LED bulbs. The purpose of the table is to give you a rough idea on the total cost over a 10 years period for the three types of bulbs.

LED lights electricity cost calculator

The calculator below can be used to estimate the power and cost consumption of LED light bulbs over time.

You just need to adjust the values in the PARAMETERS section to your requirements and the calculator will automatically display the RESULTS section.

For example, if you have 8 LED light bulbs at home that:

>  Have a power rating of 7 Watts (W)

>  Are switched on 6 hours a day and 320 days per year

>  You are paying 0,217 euro (or dollars or pounds) per every kWh you consume

You will be paying around 23 euro (or dollars, or pounds, or…) per year in electricity costs to power up those 8 LED light bulbs.

How much does electricity cost

If you don’t know how much you are paying per kWh, you should be able to find the cost per kWh on your electricity contract or in one of the electricity bills.

Home appliances and devices electricity calculators

A few other examples from our ‘Electricity usage and electricity cost calculators‘ page that may be of your interest:

How to lower the home lighting electricity bill

1.-  If possible, use transparent shades or fittings.

This is because the dark lampshade can absorb some of the light that a light bulb emits.

Dust accumulation will prevent an efficient light distribution.

3.- Choose the right color

‘Soft white’ or ‘warm white’ light bulbs provide a homey glow that is best for general household lighting

‘Cool white’ or ‘pure white’ are ideal for office spaces, reading areas or any area that requires clear vision.

If you have a office space and install the incorrect lighting, you may try to compensate by installing additional lighting like desk lamps. And this approach will become an electricity waste.

4.- Do not keep the light switched on unnecessarily

Well, this is the most common piece of advice but it does really count.

Below, on the next section, you will find a calculator that should give you some insights on the importance of electricity conservation.

Even small savings may have a big impact when it comes to reducing our carbon footprint and conserving our natural resources.

LED lights electricity usage FAQ

How to tell if a light bulb is LED or incandescent

An incandescent light bulb has a filament that it is quite easy to identify. Just have a look to the picture of an incandescent bulb in Wikipedia.

The filament it is the thickness of a human hair and gets bright when the bulb it is switched on. The presence of this filament makes the incandescent bulbs quite easy to identify.

Do LED strips use a lot of electricity

LED strips use between 20 to 40 Watts.

With this information, you can use the calculator from the ‘Electricity cost calculator’ section to find the electricity usage and the electricity cost of a LED strip.

How much energy does a LED light use

An LED light can use between 2 to 30 Watts, depending on the model.

When buying a LED light, the energy/power consumption should be displaying on the package.

When buying online and LED light, the energy/power consumption should be displayed on the description or technical specifications section.

Does LED lights use less electricity

Yes, LED lights use less electricity than fluorescent, compact fluorescent or incandescent light bulbs.

Electricity measurement units

Electricity measurement units calculators

Or you can have a look to this electricity measurement units calculators to get a better understanding of:

> What is a Watt (W) and how to transform Watts into Kilowatts

> What is a Kilowatt (kW) and how to transform Kilowatts into Kilowatts hour

> What is a Kilowatt hour (kWh) and how to transform Kilowatts hours to other units

> What are Power (P), Voltage (V) and Current (I)

Home lighting and energy conservation

Energy conservation can be defined as the decision and the act of using less energy

Energy conservation both benefit you and the environment

The act of saving and conserving electricity does benefit you because you will be paying less on your energy bills.

And it also does benefit the environment because conserving electricity prevents any unnecessary waste of natural resources.

Now, at individual level it may not look worth to try to save a few watts here or there.

Still, every little counts and if hundreds or thousands of us do save a little every time, it will make an important contribution towards conserving our natural resources.

Energy conservation calculator

If we could reduce our homes lighting electricity usage, even a very small amount, it would make a big impact on preserving our natural resources.

For example, if 9000 households would manage to save as little as 10 Watts per day (0,01 kWh) on home lighting electricity usage, that would add to 32850 Kilowatt hour (kWh) saved per year.

9000 households x 0,01 kWh per day x 365 days per year

32,850 kWh saved per year

That is a considerable amount of electricity, but let’s add additional perspectives for clarity:

> Assuming an average cost of 0,18 euro (or dollars, or pounds, or any other currency) per kWh, we would collectively be saving nearly 6000 euro per year.

> To produce 32,850 kWh of electricity it is necessary to use around 17 metric tons of coal or 56 barrels of residual fuel oil.

Have a look to this page for more information about the amount of resources needed to produce electricity.

In any case it is clear that small energy savings do really count when looking into the bigger picture.

Proven ways to save electricity at home

If you are looking for ideas to save electricity at home, have a look to this YouTube video were we show some useful tips to reduce the electricity usage at home and decrease the electricity bill.

Calculators

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