Simple Life-Cycle Cost Estimator

      Compare the life-cycle costs for two different lamps.
      Enter the following information and click "calculate".
      Your results will display below.


      * Required
       
      * Average number of hours on per year:    
      * Electric cost per kilowatt hour:    
       
      Lamp 1
      Lamp name:    
      * Watts (luminaire watts/# of lamps):    
      * Cost (including disposal cost):   EUR 
      * Life in hours:    
      * Cost of labor to replace lamp:   EUR 
      Mean lumens:    
       
      Lamp 2
      Lamp name:    
      * Watts (luminaire watts/# of lamps):    
      * Cost (including disposal cost):   EUR 
      * Life in hours:    
      * Cost of labor to replace lamp:   EUR 
      Mean lumens:    
       
        Calculate

      Results
        Lamp 1        Lamp 2
      Lamp name:         
      Cost over lamp life:         
      Cost per 1,000 hours:         
      Cost per year:         
      Cost per million lumen hours:         
       
       
      Savings with Lamp 2:  /year
      * If you are comparing lamps with significantly different light output, the cost per year may have a greater difference. To get a more accurate representation of the cost of light, look at the cost per million lumen hours.