V1 Electricity saving calculator

NAME	PARAMETERS	NOTES
Power	W	-
Count	pieces	Number of LED
Operation	hours a day	LED operating time
Consumption year		(Power * Number of pieces * Operating time * Number of days) / (Unit conversion)
Consumption year	eur	Consumption year kWh * Rate
Annual savings		Consumption year kWh bulb - Consumption year kWh LED
Annual savings	eur	Consumption year eur LED - Consumption year eur LED
Return on investment	years	(Purchase price difference no VAT * Number of LEDs) / (Annual euro savings)
Lifespan hours	years	(Livespan hours) / (Number of days * LED operating time)
Lifetime savings		Annual kWh savings * Lifespan of years
Lifetime savings	eur	Annual euro savings * Lifespan of years
Net profit over life	eur	(Life savings in euros) - (Purchase price difference no VAT * Number of LEDs)
Annual return on investment	%	(Net profit over life / Livespan years) / (Purchase price difference no VAT * Number of LED) * 100
The price of the work	eur	Purchase price difference no VAT * Number of LED
Purchase price difference no VAT	eur	-
Number of days	in years	-
Rate	eur	-
Lifespan	hours	-
Rounding	places	The number indicates the number of decimal places to which the value will be rounded.
Unit conversion		-

NAME	BULB	LED LAMP	PARAMETERS	NOTES
Power			W	-
Count	0.00		pieces	Number of LED
Operation	0.00		hours a day	LED operating time
Consumption year	0.00	0.00	kWh	(Power * Number of pieces * Operating time * Number of days) / (Unit conversion)
Consumption year	0.00	0.00	eur	Consumption year kWh * Rate
Annual savings	0.00		kWh	Consumption year kWh bulb - Consumption year kWh LED
Annual savings	0.00		eur	Consumption year eur LED - Consumption year eur LED
Return on investment	0.00		years	(Purchase price difference no VAT * Number of LEDs) / (Annual euro savings)
Lifespan 0 hours	0.00		years	(Livespan hours) / (Number of days * LED operating time)
Lifetime savings	0.00		kWh	Annual kWh savings * Lifespan of years
Lifetime savings	0.00		eur	Annual euro savings * Lifespan of years
Net profit over life	0.00		eur	(Life savings in euros) - (Purchase price difference no VAT * Number of LEDs)
Annual return on investment	0.00		%	(Net profit over life / Livespan years) / (Purchase price difference no VAT * Number of LED) * 100
The price of the work	0.00		eur	Purchase price difference no VAT * Number of LED
Purchase price difference no VAT			eur	-
Number of days			in years	-
Rate			eur	-
Lifespan			hours	-
Rounding			places	The number indicates the number of decimal places to which the value will be rounded.
Unit conversion			kWh	-