# How do you calculate energy saving for LED lights?

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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.

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## 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.