How Many Watts Does a Light Bulb Use Per Month?

Light bulbs have become an indispensable part of our lives and are frequently used even during the daytime to make commercial, corporate, domestic, and other actions possible. That is why one should know how many watts a light bulb uses per month. 

In this blog, we figure out how many watts does a light bulb use per month. Stick around and find out every detail you need to know.

How Many Watts Does a Light Bulb Use Per Month?

The incandescent light bulbs, on average, consume as much as 60 Watts per month, whereas the LED bulbs use almost 10 watts of electricity. Breaking it further, if one uses incandescent bulbs for 4 hours daily, they might consume as much as 480 watts per day and 14.4 kWh of electricity monthly.

You can calculate your light bulb’s energy consumption using the following formula:

Energy consumption = watts x usage duration

On the other hand, when used four hours daily, LED bulbs consume 40 watts a day and almost 2kWh of electricity every month. Hence, incandescent bulbs are more expensive compared to LED bulbs. 

Incandescent Bulbs: Depending on their usage, incandescent bulbs consume an average of 60 to 100 watts.

• Incandescent Bulbs: Depending on their usage, incandescent bulbs consume an average of 60 to 100 watts.
• Fluorescent Light Bulbs: Fluorescent light bulbs, which are usually spiral in shape, are more efficient than incandescent bulbs and can consume not more than 25 watts of electricity.
• LED Bulbs: Light-emitting Diode bulbs are the most efficient and use only 10 watts of electricity on average.

Here is a table depicting how many watts does a light bulb use daily:

How Much Electricity Do Light Bulbs Use?

Your light bulbs can consume between 2 and 100 watts of electricity, depending on their size and daily or monthly usage. In addition to the size and usage of electricity bulbs, the type of electricity bulb can also influence electricity usage.

Traditional electricity bulbs or incandescent bulbs use anything between 25 to 100 W, whereas LED bulbs utilize electricity much less than the typical bulbs. The electricity consumption by LED bulbs` can vary between two to 18 Watts. Speaking of the voltage, a light bulb usually draws 110 volts of electricity and less than 1 ampere of current.

The thumb rule here is that the number of hours of electric bulb usage influences the electricity consumed daily. On average, lights are usually on for about two hours daily, so the incandescent light bulb consumes 60W monthly.

Let’s consider using bulbs for an hour daily, drawing 0.07 kWh of electricity weekly. The monthly consumption of such bulbs will be 0.3 kWh and 3.65 kWh for a year. On the other hand, if one uses a light bulb for two hours every day, the weekly power consumption will reach up to 0.14kWh. The annual electricity consumption will be almost 7.30 kWh.

However, if you use an electricity bulb for three hours, your weekly energy consumption will be 0.21 kWh, and your monthly consumption will be almost 0.92 kWh. For a year, a bulb's electricity consumption for three hours every day will be 11.0 kWh.

How Much Does It Cost to Run a Light Bulb for 24 Hours?

Your electricity bill is the total sum of electricity consumption throughout a month. The bill includes the cost of electricity consumed by all of the appliances at your home. However, if you aim to calculate the monthly or daily cost of electricity a light bulb consumes, you may need a calculator.

You can calculate the daily or monthly cost of electricity a light bulb uses by multiplying the average electricity rate per kWh by the daily or monthly electricity consumption. For instance, if the LED bulb consumes 0.12kWh of electricity per month and the average cost of electricity per kWh is 22.00 ¢, the monthly cost will be $0.13, and the cost per year will be $1.61

Likewise, if an LED bulb draws electricity of 0.004 kWh per day, the cost of everyday electricity consumption, at an average of 22.00 ¢, will be 0.088 ¢. Here is a breakdown of monthly and annual energy consumption and its cost in different regions of the USA:

Can I Save Money with Solar Power?

It is quite common nowadays to wonder whether you can save money with solar power. With ever-rising resource issues and environmental concerns, solar power seems to be the answer to several problems.

Not only is solar power a renewable source of energy, but it is also gentle on your budget. You can for sure save money when you have solar panels at your home to capture solar energy and supply your home. 

The BLUETTI PV350 Solar Panel can save money by sourcing household appliances. When your house is powered by these durable and splash-proof BLUETTI solar panels, you need not rely on grid stations, and hence, ultimately, your life will be free of electricity bills.

These solar panels come with a kickstand for an easy setup and are foldable to carry for long distances. In addition to this, the BLUETTI PV350 solar panel has a high conversion rate, which means that the panel will offer a higher output. When the output is higher, you can save more money.

What Size Battery Do You Need to Back up a Light Bulb?

Your light bulb does not consume as much electricity; hence, a battery with minimal storage capacity can be used to back up a light bulb. For instance, the BLUETTI AC200L Portable Power Station can back up a light bulb with its 24,00 AC output, 20,48 Wh storage capacity, and 3600 W powerlifting mode.

The instant charging mode lets this power station recharge for 80% in just 45 minutes. It has 6 recharge ports (AC/Solar/Car/Generator/Lead Battery/AC+Solar). Adding a B230 battery can expand the storage capacity of this quiet, highly efficient, and smart-mode power station. The storage capacity is expandable upto 4,096Wh with 1×B230, or 8,192Wh with 2×B300.

The two BLUETTI B300 Expansion Battery will expand the storage capacity up to 8,192Wh. However, a single B300 expansion battery has a storage capacity of 3072Wh, and it can be recharged by a power socket, a car battery, or even a lead-acid battery.

Know more about BLEUTTI 300 at BLUETTI AC300 + B300 Full Review.

Is It Cheaper to Leave Lights on All the Time?

It is commonly believed that always leaving lights on can save you money as it consumes less electricity than turning on or off a light bulb. However, that is not true. Keeping the light bulb on Every minute you consume electricity will cost you money. 

When you turn on or off a light, the tiny fraction of a second where a high surge of electricity is needed is gone in a blink. This implies that the electric supply surge a bulb needs to turn on is negligible. 

On the other hand, if you keep a bulb on for hours to save yourself from that electricity surge, you are not playing it right. It will cost you more money. The most cost-effective strategy is to keep your lights off when nobody is in the room.

Final Thoughts

Light bulbs have become a staple technology in our daily lives, which is why you should know how many watts a light bulb uses per month. That way, you will be able to estimate the monthly or annual cost of electricity your light bulb is liable to.

However, to reduce the costs, you can use LED bulbs, which are the most cost-effective light bulbs to date. In addition to this, you can back up your light bulbs via solar panels and solar-powered power stations.