Lighting Layout Estimator

      Estimate the number of luminaires needed to light an area to a specified light level.

      Enter the following information and click "calculate".
      Your results will display below.

      * Required
      * Square footage of area to be lit:    
      * Desired footcandles:    
      * Average number of hours on per year:    
      * Watts per luminaire:    
      * Number of lamps per luminaire:    
      * Rated mean lumen per lamp:    
      * Ballast factor (BF) :    
      * Coefficient of Utilization (CU) :    
      * Your electric cost per kilowatt hour:   EUR 

      Estimated number of luminaires needed:    
      Estimated number of lamps needed:    
      Estimated luminaire spacing:    
      Watts per m²:   watts
      Total power load:   kW
      Energy cost per year:  
      Note: This estimator does not include Light Loss Factors (LLF) from ambient temperature, voltage, dust, and tarnishing.