LED Teardrop Retrofit Lamp


LED Decorative Pole Retrofit Kit for Teardrops, Sag Glass, Skirted and Other Arm Mounted Outdoor Lighting Fixtures

Specification Summary
Lumens 3,300 - 8,000 Watts 32 - 78
Distribution Type V, Type III DLC Qualified
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LED Decorative Pole Light Retrofit Kit

The LED Teardrop Retrofit Kit is available to replace inefficient High Intensity Discharge (HID) lamps or incandescent bulbs in decorative pole lights, with a high performance LED lamp replacement. The teardrop LED kit is used in any number of globe-styles, or decorative street tear-drop lamps. The LED retrofit kit is specifically configured to maintain the look and feel of existing tear-drop street and pathway lamps, while upgrading their efficiency and lighting quality. The tear drop LED lamp replacement is available in 3,000K warm white, as well as 4,000K and 5,000K bright white that is equivalent to metal halide lamps colors, meeting street lighting design standards. Four wattages of the LED retrofit lamps are available (32W, 42W, 58W, 78W). The LED Teardrop Retrofit Kit can be ordered in IES Type III or Type V lighting distributions.

LED Teardrop Lighting Installation

The tear drop kit comes with straps that mechanically attaches the LED lamp engine to tear drop’s globe and housing. Custom brackets are available. The Teardrop Retrofit Lamp Kit is mounted to provide effective light distribution, and to maintain the appearance from its old lamp lighting source. Installation consists of removing the existing HID lamp and ballast, wiring the LED driver to line source, placing the driver in the pole light housing and affixing the straps. The teardrop LED retrofit kit’s adapter is 14.5” to 17” in diameter to fit many decorative lamp configurations. The diameter of the PTLK LED light engine is 8.2” and readily fits decorative tear drop housing configurations.

LED Energy Savings by Retrofitting Teardrop Lamps

Retrofitting of a decorative pole light with a tear drop lamp saves substantial energy and maintenance costs. Typically, a 175 watt metal halide lamp is replaced with a 58 watt LED Tear Drop Retrofit Kit, to achieve 66% savings in electric use and costs. Metal halide (MH) or high pressure sodium (HPS) lamps in decorative street lighting need periodic replacement—often ever three years—at substantial costs. The tear drop LED lamp replacement requires no routine maintenance and the tear-drop retrofit kit’s LED lamp has a L70 rated lifetime of 1000,000 hours, providing typical service of more than 10 years.

Decorative LED Tear Drop Lighting Features

The LED Tear Drop Retrofit Kit is a LED lamp assembly designed and constructed to match the mounting requirements of decorative pole lighting in hanging lamp configuration. It retrofits decorative street lamps and other area lighting from metal halide or incandescent lamps without changing the decorative elements of the outdoor lighting fixture. This kit is based upon the DPF-D4 product and has the following features:

  • LED Lamp in heavy duty lamp assembly on a round structure with extruded heat sinks for thermal management to assure long service life.
  • The Teardrop LED lamp consists of optics that contain high efficiency lighting class LED with lenses to provide optimal light distribution.
  • High efficiency LED driver with very high power factor greater than 90% and low harmonic distortion less than 10%, and no power consumption in off state.
  • The teardrop LED lamp operating temperature is from -40C to 40C, able to operate in any normal weather conditions.
  • Available in IES Type III, or Type V distributions, customization of lighting pattern is possible.
  • 10 Year plus design life with over 70% or original lumen output after 100,000 at 30C ambient temperature (L70).
  • Available in four light outputs 3,300 lumens, 4,300 lumens, 6,100 lumens, and 8,000 lumens at 32 watts, 42 watts, 58 watts and 78 watts respectively.
  • Use this LED Teardrop Retrofit Kit when there is a requirement to reduce electric and maintenance costs, while maintaining the look and feel of decorative pole lighting with tear drop housings.

LED Teardrop Retrofit Lamp - Specification
Model MET-PT-D4-DNTL Watts Range 32W - 78W
Rebates DLC Warranty 5 Years
Size 8.2 Dia / N/A / 5 in Weight 5.9 lns
Colors Silver Options Wire Harness
Accessories Custom Mount Lumens / Watt 103 lm/ watt
Lumens 3,300 lm - 8,000 lm CCT Range 3,000K, 4,000K, 5,000K
L-70 >100,000 hrs CRI >70
Distribution IIIM, VM Volts 100-277VAC

For engineering assistance with the teardrop, or to consult about custom brackets for this decorative pole lighting fixture upgrade, contact Metro LED Lighting.

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DLC Listed?

The DesignLights Consortium™ (DLC) is a collaboration of utilities and energy efficiency organizations to accelerate energy efficiency measures in commercial buildings. The rebate process that many utilities use requires DLC qualified products to be installed and substantial energy savings realized. As part of the lighting rebate process, the DLC List is the first step in examining outdoor lighting and other projects for rebate eligibility. The DLC list requires LED fixture manufacturers submit test results from certified labs on the luminaires to be qualified, or 'listed' by the DLC. The reports submitted for the DLC qualification process include the LM-79 report that quantifies the LED fixtures performance, as well as, the LM-80 report that examines the actual LED light engine and uses TM-21 methods to project LED lifetimes. By submitting these reports and undergoing the DLC Qualification Process, assures that the Manufacturer of LED lighting products, have met certain minimum specifications for performance, as well as reassurance to the buyer.

DLC List - Specifications for Outdoor and other LED Lighting

For people procuring LED light fixtures, being on the DLC Qualified Product List, assures that the LED outdoor lighting manufacturer specifications have been reviewed and meet minimum performance parameters. The main DLC Qualified Product List performance specifications include:
  • Minimum light output (lumens) from the LED fixture based on lighting application type
  • Zonal Lumens - How the light output is distributed from the fixture to its lighting task
  • Minimum luminous efficiency - How many watts of energy does it take to produce light in lumens per watt
  • Correlated Color Temperature (CCT) - A measure of how the light appears from warm colors like incandescent at a 1,600K CCT to noon bright white at 5,000K CCT.
  • Color Rendering Index - An indication of how color appears under reflected light of the LED fixture. Typical HID metal halide ratings are in the CRI 60 range, incandescent light by definition is a CRI of 100.
  • Lumen Maintenance (L-70) is a projected value of when an LED light source will produce 70% of its original light output. It is listed in hours and the accepted value for the end-of-life for an LED fixture. An L-70 lifetime rating is temperature dependent and is usually listed at 25° C. An L-70 lifetime of 50,000 hours at 12 hours per day of LED fixture use is 11.4 years of outdoor lighting fixture use.
  • Warranty - The DLC requires some more tea of five years

DLC List and Rebates for LED Outdoor Lighting

LED lighting rebates are most often offered by Electric Utilities, and sometimes by State grant making organizations. Rebates are highly variable, and have many different requirements to be eligible for rebates. But in general, a product that is qualified on the DLC List is a good indication that rebates for outdoor lighting can be obtained. A good first source for finding rebate information is the DSIRE (Database of State Incentives for Renewables & Efficiency). Outdoor lighting rebates are generally of two types, qualified product rebates and performance based programs. Qualified product rebates are most often a rebate of a fixed amount per fixture replaced, while the performance based programs are based on the kilowatt hours or peak kilowatts of load electricity saved.

Rebate Process for LED Outdoor Lighting

Determination of which option is optimal in obtaining outdoor lighting rebates will require a modest amount lighting design and economic analysis. In overview, the rebate process involves:
  • Inventorying existing HID lighting fixtures,
  • Determine what lighting levels are required for the outdoor lighting application,
  • Selecting LED fixture will meet these lighting requirements at the lowest possible energy use
  • Compiling a spreadsheet of existing lighting fixtures compared to the proposed fixtures
Most utilities will require a spreadsheet that lists what HID fixture is being replaced with what DLC Listed product. The spreadsheet will often articulate the savings per fixture count, application type (e.g. garage lighting), and the total kilowatt hours saved and the load reduction in kilowatts. Based on this information the utility can quickly qualify the LED lighting installation for rebates, and give a general indication of the rebate amounts and levels. After the project is installed, most often certifications are required by the property owner that the installation has been completed, and in some cases, a site inspection will take place. The Utility or other rebate grantor will then mail a check to the property owner for the agreed rebate amount.