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, LED lights are more expensive than other light bulbs, which must be considered when considering purchasing LED bulbs.

How much electricity do LED lights use

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

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 and 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 of how many hours the bulb will last before having to change it

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

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

The table below compares incandescent 60 Watts bulbs and the equivalent CFL and LED bulbs. The purpose of the table is to give you a rough idea of the total cost over 10 years for the three types of bulbs.

LED lights electricity cost calculator

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

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

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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 euros (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 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 an 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 advice, but it does count.

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

Even small savings may greatly impact 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 is quite easy to identify. Just have a look at the picture of an incandescent bulb in Wikipedia.

The filament is the thickness of a human hair and gets bright when the bulb 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 cost of a LED strip.

How much energy does a LED light use?

Depending on the model, an LED light can use between 2 to 30 Watts.

The energy/power consumption should be displayed on the package when buying an LED light.

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

Does LED lights use less electricity?

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 at these 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 into 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 for your energy bills.

And it also benefits the environment because conserving electricity prevents unnecessary waste of natural resources.

At the individual level, it may not look worth trying to save a few watts here or there.

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

Energy conservation calculator

Reducing our home lighting electricity usage, even a very small amount, would greatly impact preserving our natural resources.

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For example, if 9000 households save as little as 10 Watts per day (0,01 kWh) on home lighting electricity usage, that would add to 32850 Kilowatt hours (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 euros (or dollars, pounds, or any other currency) per kWh, we would collectively save nearly 6000 euros annually.

> 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.

In any case, small energy savings do count when looking into the bigger picture.

Proven ways to save electricity at home

Suppose you are looking for ideas to save electricity at home; look at this YouTube video. We show some useful tips for reducing electricity usage at home and decreasing the electricity bill.

Calculators

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