LED Soffit Light / LED Downlight 8 Inch Round


8 inch LED Architectural Downlight is retrofit for indoor lighting, wide range of lumens, highly efficient and long lasting.

Specification Summary
Lumens 1,350 - 4,200 Watts 18 - 56
Distribution DLC Qualified
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LED Downlight 8" Round

This LED Soffit/ LED Downlight, manufactured by OKT Lighting, is a high performance, energy efficient, round recessed fixture designed for under eave lighting, architectural soffits, drop ceilings, or other outdoor canopy locations. It replaces existing CFL or HID fixtures, or can be readily used in new construction. This luminaire is suitable for use in damp locations, and can be installed in protected outdoor lighting locations. The LED driver is separated from the fixture, for ease of installation and serviceability, from under the ceiling cavity. Additionally, placing the driver away from the fixture's body can manage heat and improve fixture reliability. The LED soffit light produces between 82 lumens per watt and 91 lumens per watt. This fixture provides large energy savings, less maintenance and retrofits incandescent, CFL / Compact Fluorescent Lights, and HID downlights. This 8" round soffit light is Energy Star listed, eligible for rebates in many locations.

Soffit and Downlight - LED Retrofit Options

This LED fixture is for an 8” round nominal opening, and is used as a soffit retrofit fixture or in new construction applications. This LED downlight is available in a wide range of color temperatures from 3,000K CCT to 5,000K CCT. The fixture has a high Color Rendering Index (CRI) with a Ra>80. The LED Soffit Light is available in a wide range of wattages and lumen packages, ranging from 18 watts to 40 watts, with the lumen output from 1,448lm to 3,190lm. The fixture has a 50,000 hour life, and a standard guarantee of 5 years.

Features of the LED Soffit Light 8” Diameter Fixture

This very flexible LED Soffit Light / Dowlight is available in several models, features and options include:

  • LED Soffit Light Wattages/ Lumen output of 18W/ 1,350lm, 27W/ 1,890lm, 40W/ 2,800lm, and 54W/ 3,780lm
  • The 100-277VAC models of the LED Soffit Light also have models with 23W/ 1,750lm, and 33w/ 2,390 lm light outputs
  • LED Soffit Replacement for 32W CFLs to 150W HID fixtures, often saving up 70% of energy costs
  • High efficiency fixture for energy savings ranging from 78 lumens / watt to 91 lumens/ watt
  • Wide ranges of downlight models are available to accommodate differing ceiling or eave heights with a uniform lighting fixture. (Other similar models are available for 4”, 6”, and 10” nominal round soffit openings)
  • Available with AC or DC dimming capabilities.
  • Universal LED drivers available for 100-277VAC or as 120VAC only
  • CCT Options of Warm White 3,000K, 4,000K, and Bright White 5,000K
  • Extensive Heat Sinking on the soffit fixture for luminaire protection from thermal stress
  • LED Fixture Designed to Operate up to 45C
  • External Driver serviceable from below ceiling cavity for ease of installation and maintenance
  • LED Soffit Driver in separate rated enclosure to minimize heat for the driver thus extending the lifespan of the unit
  • Designed to retrofit soffit/ downlights with openings from 7.72” to 8.26” openings
  • UL, cUL listed, and Energy Star Listed

Retrofit Guidelines LED Round Soffit 8”

The following soffit lighting wattage combinations are typical CFL and HID replacement guidelines. The necessary watt/ lumen package requirements can greatly vary depending on the specific conditions present, such as ceiling height, color of the ceiling, heights, etc. Full IES files are available for lighting design, and need to be consulted for proper results.

  • Retrofitting 32W CFLs, and 39W HID Fixtures – 18 W LED Soffit
  • Retrofitting 42W CFLs, and 40 W HID Fixtures – 23 W LED Soffit
  • Retrofitting 57W CFLs, and 70W HID Fixtures – 27W LED Soffit
  • Retrofitting 2X 42W CFLS, and 100W HID Fixtures – 33W LED Soffit
  • Retrofitting 150W HID Fixtures – 40W LED Soffit

LED Soffit Light / LED Downlight 8 Inch Round - Specification
Model OKT-DL-C8A Watts Range 18 - 56 W
Rebates Energy Star Warranty 5 years
Size 8 in / N/A / N/A Weight N/A
Colors silver Options N/A
Accessories N/A Lumens / Watt 75 lm/W
Lumens 1350 - 4200 lm CCT Range 3,000 - 5,000 K
L-70 50,000 CRI 80
Distribution other Volts 120-277VAC

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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.