* To determine the total savings for a particular installation, take the corresponding savings over the HID fixture and multiply by the number of fixtures.

* To determine the savings of a the 28WT5 source multiply savings by 2.

Example: Replacing quantity 300 150M HID fixtures @ $0.10 per kWh and @ 18 hours operation per day, the total savings will be $42.71 per fixture or $12,813 per year for the entire system.

Formula: (Watts saved X kWh x hours burned per year) / 1000