Case 3

Project: 600pcs LED T8 tubes replace 600pcs T8 fluorescent tube lights for parking lot.

Calculation base on:

  1. 600pcs T8 tubes in one parking lot;
  2. The lights keep on 24/7, 365days, then about 8760 hours a year;
  3. The electricity rate is $0.09/kwhr.
  1. Each tube save: 32w-18w=14w;

           One year will save:

           600 x 14w x 8760 hr/1000 = 73584kwhr;

           $0.09 x 73584kwhr = $6622.56

           Three years will save:

           $6622.56 x 3 =$19867.68;

  1. Maintenance Fee for 600pcs T8 fluorescent light including ballasts during three years:

Suppose 60pcs tubes and 10 ballasts need be replaced; so the maintenance fee with labor could be: $1800.00

  1. Our LED 18w T8 tube costs $28/ea including labor of replace and we supply three years full warranty (materials and labor). So 600pcs LED T8 tube cost:

            $28 x 600 =$16800;

  1. So after three years the customer will save:

           $19867.68 +$1800 - $16800 =$4867.0;