Replace a Post Top Lamp - Save $520 to $820 Per Decorative Pole Fixture


LED Decorative Pole Lighting Case Study

Payback of Using E39 Edison LED Lamps v HID Re-Lamping

LED Post Top E39 Lamp - A Fast, Efficient Upgrade for Decorative Pole Lighting A single decorative pole lighting fixture with a traditional high intensity discharge (HID) lamp can cost upwards of $100 per year per pole to light and maintain. Even in a small installation of twenty outdoor lighting fixtures, this is a substantial cost.

The fixtures used in this LED Decorative Pole Lighting - Payback and Lifecycle Analysis are the E39 LED Edison Base Post Top Lamp from Sansi Lighting.

LED fixtures and lamps afford the opportunity to lower these costs, and to gain better lighting. With recent price reductions in LED post top lamps, paybacks have improved and now range from just under one-year to eighteen months. In addition to lower electrical operating costs, other less tangible benefits include:

  • No routine maintenance,
  • Improved longevity for the decorative pole light,
  • Higher quality of lighting with more light directed to the ground through advanced optics, and
  • Better visual acuity from the improved color rendering index (CRI) of this LED lamp as compared to high pressure sodium (HPS) or metal halide (MH) lamps.

Replace a Post Top Lamp with LEDs Gain $520 to $820 Reduction in Operating Costs per Pole

This updated analysis uses the LED Post Top Lamp available in both a 25-watt model, producing 2,850 lumens and a 40-watt model producing 4,600 lumens. They readily replace a 100-watt or a 175-watt HID lamp. These LED post top lamps are specifically designed for decorative pole lighting. Unique to this post top lamp is its directed optics and extensive thermal management. This results in a very effective on the ground outdoor light and very long L-70 rating and service life. With new pricing recently introduced, replacing a 100-watt metal halide lamp with a 25W E-39 Edison Based LED Post Top Lamp saves over $520, over its projected lifetime. And for a 175 watt HID lamp with a 40W LED post top lamp, the savings are substantially higher.

Decorative Post Top Lighting Payback Analysis:

In traditional outdoor lighting, all the components of the outdoor fixture have a finite life, for each hour of operation the lamp’s life grows shorter, and components such as the ballast wears out.

In this analysis, the HID lamp is a rated at 15,000 hours, a common lamp life. The HID ballasts are rated at useful life of 50,000 hours. Replacing a lamp is a quick task accomplished in 15 minutes, a ballast replacement requires 30 minutes of skilled electrician labor. These costs of maintenance are usually hidden, they accumulate slowly over time, and often are buried in a maintenance budget. But none the less, they are substantial costs.

Life-Cycle Costs of LED Post Top and HID Lamps in Decorative Pole Fixtures

In this analysis, full life-cycle costs are applied. In the case of an HID lamps costs are assigned per 10,000 hours for labor, lamp and ballast maintenance costs, and electric costs. No purchase or first costs are include in the analysis of the HID fixture. It is assumed that a fixture is in place and the decision being examined is to upgrade to an LED lamp, v. a re-lamping the HID fixture.

In the case of the LED post top lamp, the purchase price for the LED lamp are included. The electrician’s costs for upgrading the LED fixture to the LED lamp is also incorporated. Electric costs are set at 10 cents per kilowatt hour, a conservative electric rate. An electrician is expected to cost $80 per hour of labor.

The costs used for the in this life-cycle ownership analysis are:

  • For the out-of-pockets costs of the LED Post Lamp (25W) is $59.00, and 15 minutes of labor to install
  • For the HID lamp and fifteen minutes of labor: $34.71
  • For the HID Ballast replacement and thirty minutes of labor: $88.00

25W LED Post Top v. 100W HID Lamp: Total Cost of Ownership Per Year at 12 Hours Per Day Use

Amortized Costs Electric Costs Total
25W LED Post Top Lamp $3.46 $10.95 $14.41
100W HID Fixture
100 W HID Lamp $10.14 $43.80
100 W HID Ballast $5.51 $7.88
HID Total $15.64 $51.68 $67.32
Net Savings Per Year $12.18 $40.73 $52.91
% Savings 79%
Payback Months 17.9

25W LED Post Top Lamp Lifecycle Costs v 100W HID Lamp for Decorative Pole Lighting Over One Year

In this case, instead of re-lamping, using a LED Post Top Lamp results in a 79% savings, and a payback in under 18 months. If electric rates are higher, the savings will be even greater. With rebates included, the payback would be in under a year. With these savings projected over the lifetime of 100,000 hours, this simple upgrade saves $529.10 00 per pole per year.

40 Watt LED Post Top v. 175 Watt HID lamp Total Cost of Ownership

Similar to the 25 watt analysis, the costs used for a 175 watt HID replacement (40W LED Post Top) for this total cost of ownership analysis are:

  • For the out-of-pockets costs of the LED Post Lamp is $62.00, and 15 minutes of labor to install
  • For the HID lamp and fifteen minutes of labor: $34.71
  • For the HID Ballast replacement and thirty minutes of labor: $88.00

40W LED Post Top v. 175W HID Lamp: Total Cost of Ownership Per Year at 12 Hours Per Day Use

Amortized Costs Electric Costs Total
40W LED Post Top Lamp $3.59 $17.52 $21.11
175W HID Fixture
175 W HID Lamp $9.91 $76.65
175 W HID Ballast $7.53 $9.64
HID Total $17.45 $86.29 $103.73
Net Savings Per Year $13.85 $68.77 $82.64
% Savings 80%
Payback Months 11.9

40W LED Post Top Lamp Lifecycle Costs v 175W HID Lamp for Decorative Pole Lighting Over One Year

By replacing a 175 watt HID lamp with the 40 watt LED post top lamp results in savings over $82 per year per pole. In a larger 50 decorative pole installation, this would be over $4,100 per year of savings. Over a 10 year period, this is over $41,000 of saving in operating costs.

High ROI – Fast Paybacks with LED Post Top Lighting

These compelling upgrades provides the means to renovate the beloved decorative pole outdoor lighting, teardrop fixtures, historic district lighting, campus lighting, and greatly reduces the operating costs for these outdoor pole light installations.

Additionally, Metro uniquely provides a Field Labor Services Warranty that is included with this LED Post Top Lamp. As an added layer of protection, this warranty pays $100 for a field service call if anything should go wrong during the post top lamp’s warranty period.

The LED postop lamps for decorative pole lighting are generally available for quick shipment. Further Metro LED can ship directly from the overseas supplier quickly, and economically for larger quantities. This E39 Edison based LED lamp, is DLC listed with rebates readily available from many sources including Electric Utility Companies, and other agencies.

The LED Post Top Program and warranty is available for a limited time, contact us or call Tom Fake at 518-321-9433 for details.

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