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## How do you calculate power consumption of an LED?

To calculate an LED’s power use, simply **multiply the LED’s voltage (in volts) by the LED’s current (in amperes)**. The result, measured in watts, is the amount of power your LEDs use. For example, if your LED has a voltage of 3.6 and a current of 20 milliamperes, it will use 72 milliwatts of power.

## How much do LED lights save per month?

Here’s a bright idea: Switching to LED light bulbs can help the typical home save about a $1,000 over a 10-year period. That’s **roughly $8.33 a month**.

## How much heat do LEDs give off?

“**LEDs do not give off heat**.”

It is true that LEDs do not emit as much heat as other sources of light: that’s because they are so energy efficient. However, LED fixtures still need to be designed to dissipate heat; otherwise, they will fail prematurely.

## How much power does a 5mm LED use?

For standard 5mm diameter LEDs the maximum current is usually **20mA**, so 10mA or 15mA are suitable values for many circuits. The current must be in amps (A) for the calculation, to convert from mA to A divide the current in mA by 1000.

## How do you calculate light consumption?

Incandescent Lighting: **Watts* X hours per day** = watt-hours per day; X days per year = watt-hours per year; ÷ 1,000 = kWh per year; X energy cost per kWh = total annual energy cost. Fluorescent and HID Lighting: Watts* X hours per day = watt-hours per day; X days per year = watt-hours per year; ÷ 1,000 = kWh per year.

## Are LED lights cheaper to run than energy saving bulbs?

LED bulbs use only a fraction of the electricity consumed compared to traditional incandescent bulbs. **They are cheaper to run than fluorescent lighting**. Also, they can last for up to fifty times longer. Most run for years with no faults or problems occurring.

## How much does it cost to run a LED light bulb for 24 hours?

Leaving the bulb on the whole day will therefore cost you: 0.06 (60 watts / 1000) kilowatts x 24 hours x 12 cents = **approximately 20 cents** in one day.

## Do LEDs save electricity?

The invention of LEDs has utterly transformed the energy landscape — on average, they use **at least 75% less energy than incandescents** and last around 25 times longer.