LED Cobra Head Street Light GR


High Efficiency LED Cobra Head Light for Street and Roadway Lighting

Specification Summary
Lumens 4,500 Watts 41
Distribution Type III, Type II DLC Qualified
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LED Cobra Head for Street Lighting

Economical LED Cobra Head Street Light, Fast to Install, Rugged and Long LastingThis Cobra Head Fixture features heavy duty die-cast aluminum construction providing both durability for roadway and street lighting. It has superior heat management to prolong the lifetimes of the LED light engineers with an L-70 rating of over 150,000 hours at 25oC. Additionally, the uniquely shaped cobra style housing manages the heat of the LED array through external cooling fins integrated above the LEDs.

Quick to Install Street Lighting

For easy maintenance in the field, this street lighting fixture has tool-less entry via slot screws for fast and quick installation in the field. The power door with quick driver disconnects allows for quick and easy installation and driver replacement if maintenance is ever required. The street lighting fixture has an IP65 rated optical compartment to completely seal the LEDs from the intrusion of water, insects and dust in this harsh outdoor lighting environment. The lighting fixture is quick to clean and has sealed light for routine maintenance and cleaning. The standard animal guard protects against intrusion from small animals and debris around the mounting arm. Silicone gaskets and a UV stabilized acrylic lens ensure long life and consistent performance over time. This fixture is IP 65 rated for intrusion protection.

NEMA Seven Pin Photocell Receptacle for Smart Street Lighting

This lighting fixture features a standard seven pin NEMA photocell receptacle that can be used either with dusk to dawn lighting controls or can be used with intelligent lighting controls. The NEMA 7-Pin photocell can be installed on original application and leaves the option open later to easily upgrade in the field to an intelligent lighting system. An intelligent lighting system can control individual fixtures, providing reduced energy consumption, longer life for the cobra head fixture, reduced maintenance and much lower energy costs. Advanced lighting controls can save up to 90% of the energy and maintenance costs over traditional HID Street Lighting. Metro LED Lighting can assist in the lighting engineering and design of advance lighting controls, please contact us for a consultation.

Pole Mounting Features LED Cobra Head

Pole Mounting Options Available for GR Series Cobra Head FixtureThe LED Cobra Head’s internal mount accepts 1-3/4” to 2-3/8” O.D. mounting arms and a 2-bolt clamping mechanism secures the arm to the fixture. To facilitate ease of installation, leveling guides, casted into the housing of the fixture provide 2.5˚ step increments for +/-5˚ vertical leveling adjustment. Numerous mounting arms, ordered separately, are available for mounting to round or square poles. Options in these arm mounts include round pole mounts, square pole mounts, tenon arms in configurations accommodating one to four fixtures per pole. A terminal block is also standard for easy wiring in any application.

LED Cobra Head Street Light GR - Specification
Model EYE-CH-GR Watts Range 41 watt
Rebates DLC Warranty 5 Years
Size 6.5 in / 8.7 in / 19.3 In Weight 10.4 lbs
Colors Silver Options N/A
Accessories N/A Lumens / Watt 110 lm/ watt
Lumens 4,500 lm CCT Range 4,000K, 5,000K
L-70 >150,000 Hrs CRI 70
Distribution Type II, Type III Volts 100-277VAC

Cobra Head Optics

This street lighting fixture provides IES Type II Medium and III Medium distribution patterns, most commonly used in roadway lighting. The one-piece UV stabilized acrylic optic seals the LED board, protecting it from water and dirt ingress, to provide long life and consistent performance throughout the lifetime of the luminaire

Electrical Features

The cobra head fixture provides separate electrical and optical chambers to protect components from overheating and maintains operating efficiency. The LED driver features 0-10VDC dimming and mounts to the die-cast aluminum door for optimal heat management. A replaceable surge protector is built to withstand 10kV/10kA of transient line surge. A 7-pin NEMA photocell receptacle for optional wireless control is standard. Shorting cap provided. The GR Series LED Streetlight is suitable in -40°C to 50°C ambient conditions.

Finish Features

This durable street light utilizes a multi-stage cleaning, pretreatment and chemical conversion coating process. A durable polyester powdercoat is electrostatically applied to a 2 to 3 mil thickness. This process ensures protection from impact, UV and salt spray damage.

Cobra Head Fixture Dimensions

LED Cobra Head for Street 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.