Generic comparison between HPS lights and LED lights

One kilowatt hour is equal to running a 1000 watt load for one hour. By running a 2000 watt load for 1 hour, 2 kilowatt hours of electricity have been consumed. The cost, in this case would be $0.278 for one hour of usage if electricity is at the usage rate of 13.9 cents per kilowatt hour.

Warehouse lighting example

Current lighting: 16 ceiling mounted 400 Watt High Pressure Sodium lamps
Operational hours: 8AM to 8PM daily
Current cost of electricity: 13.9 cents per kilowatt hour (kWh)

Current lighting cost of ownership:

16 lights @ 400 Watts each = 6400 Watts or 6.4 kilowatts.
1 work day of 12 hours of usage will consume 76.8 kWh of electricity (12 hours x 6.4 kilowatts)
1 week @ 12 hours per day = 84 hours or 537.6 kWh of electricity
1 month @ 30 days = 2304 kWh

1 week of usage at the rate of 13.9 cents per kilowatt hour = $74.73
1 month of usage = $320.26

Conversion to LED lighting:

16 lights @ 80 Watts each = 1280 Watts (1.28 kW)
1 work day of 12 hours of usage will consume 15.36 kWh of electricity (12 hours x 1.28 kilowatts)
1 week @ 12 hours per day = 84 hours or 107.52 kWh of electricity
1 month @ 30 days = 460.8 kWh

1 week of usage at the rate of 13.9 cents per kilowatt hour = $14.95
1 month of usage = $64.05

The cost savings for the above example is $256.21 per month.

Every 2 months you use your new LED lights pays for
one of your new fixtures. In 32 months they have literally
paid for themselves in savings even if you do not take
into account the money you save in replacement HPS
bulbs, installation and down time.

Our LED products come with a 2 year warranty and
approximately 10 year lifespan.

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