info Use the calculator by entering the desired lamp power, the number of lamps, the daily operating time and the assumed operating time, and then press "Calculate savings".

Assumptions: Declared operating time of the traditional lamp: 1000 h
Declared operating time of LED lamp: 15000 h
Days per year: 365 days

Lamp power: W Number of lamps: szt. Price per kWh: PLN
Daily operating time: h    Traditional lamp price: PLN
Assumed operating time: years  LED lamp price: PLN

Light source use table:

Operating hours per year Total operating hours No. of lamps to be replaced per year Rounded no. of lamps to be replaced per year No. of lamps to be replaced during the total operating time Cost of lamps during the operating time
Traditional lamp
LED lamp

Power consumption table:

Power Power consumption per year Power consumption during the total operating time Power cost per year Power cost during the total operating time
Traditional lamp
LED lamp

Table of costs:

Cost of light sources Power cost Total of costs
Traditional lamp
LED lamp
Profit: