The energy usage of LED lamps is much lesser than that of CFL lamps or fluorescent lamps or incandescent bulbs. It can produce 80-100 lumens/ watts which is almost 5 times higher than lumens/ watts capacity of incandescent bulbs (16 lumens per watt). By using LED lamps at home, you can reduce electricity usage. Moreover, LED bulbs have a life span of 25000hrs which is 50 times that of incandescent bulbs.
Enter the wattage, hours of usage and cost per kWh. The energy usage calculator for LED gives you the total energy consumed by the LED. Also, you can find how much power do LED lights use. To check the current electricity price per kWh in your region refer to Global Electricity rates. It is necessary to enter the right cost per unit(kWh) to find the exact price.
Energy usage of LED
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|Cost per unit*:(Global Electricity rates)|
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Power consumption of LED lamps
|Lumens||Typical LED Watts|
|400 – 500||6 – 7W|
|650 – 850||7 – 10W|
|1000 – 1400||12 – 13W|
|1450-1700+||14 – 20W|
|2700+||25 – 28W|
Terms and definitions:
Power usage of device in watts as mentioned in the label of the lamp.
Cost per unit:
The average cost per unit charged by the electric utility. Every country has different tariff rates. Visit: Global Electricity prices for details if you don’t know how much the utility company charges you per unit or kWH.
Units per day:
The number of units of electricity consumed by the load every day considering the entered operation hours.
Hours of usage:
Number of hours the load is used per day.
The electricity usage depends on the wattage, number of hours of usage. The utility company charges you for the total number of kilo-watt-hour of energy you have consumed. Kilowatt-hour is the product of power consumption of the load and the number of hours of usage.
Replacing incandescent bulbs with LED lamps can help you cut down your energy usage costs by 70 per cent. They can last up to 20 times longer than incandescent bulbs.
A 3 watt led bulb can produce 250 lumens of light which are equivalent of that produced by a 25watts incandescent bulbs. 3 watt led bulb has a power consumption of 3 watts per hour.
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