Ultra-high efficiency

Pendant or surface mount

IP 66 rated, keeps water and dust out

Low glare, vandal-resistant polycarbonate lens

20% uplight eliminates "cave effect"

100,000-Hour LED lifespan

5-Year, No-Compromise Warranty


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Technical Specifications Listings UL Listing:
Suitable for wet locations IESNA LM-79 & LM-80 Testing:
RAB LED luminaires have been tested by an independent laboratory in accordance with IESNA LM-79 and LM-80, and have received the Department of Energy "Lighting Facts" label DLC Listed:
This product is on the Design Lights Consortium (DLC) Qualified Products List and is eligible for rebates from DLC Member Utilities. 
DLC Product Code: P5DPSF3J Electrical Drivers:
Constant Current, Class 2 100V - 277V, 50/60 Hz. THD <20%. THD:
8% at 120V, 7.2% at 277V Power Factor:
99.1% at 120V, 97.2% at 277V Construction Lens:
Frosted polycarbonate Gaskets:
High temperature silicone IP Rating:
Ingress Protection rating of IP66 for dust and water Ambient Temperature:
SuitableFor use in 40°C (104°F) ambient temperatures Finish:
Formulated for high-durability and long lasting color Cold Weather Starting:
Minimum starting temperature is -40°C (-40°F) Thermal Management:
Superior thermal management with external "Air-Flow" fins Housing:
Die-cast aluminum and sheetmetal housing. Polycarbonate is affected by cleaning agents or other liquids containing partial solvents such as low molecular weight aldehydes and ethers, ketones, esters, aromatic hydrocarbons and perchlorinated hydrocarbons. Click here for a detailed list of damaging chemicals. Mounting:
Die-cast aluminum backbox with (4) 1/2" conduit openings with plugs. Hinged tether for easy installation and wiring. Also accomodates 1/2" or 3/4" NPS pendants (provided by others). Lens:
High-transmission and vandal-resistant polycarbonate frosted lens Reflector:
Specular polycarbonate Green Technology:
Mercury and UV-free. RoHS compliant components. Polyester powder coat finish formulated without the use of VOCs or toxic heavy metals. LED Characteristics LEDs:
Long-life, high-efficacy surface mount LEDs Lifespan:
100,000-hour LED lifespan based on IES LM-80 results and TM-21 calculations Color Consistency:
7-step MacAdam Ellipse binning to achieve consistent fixture-to-fixture color Color Stability:
LED color temperature is warrantied to shift no more than 200K in CCT over a 5 year period Color Uniformity:
RAB's range of CCT (Correlated Color Temperature) follows the guidelines of the American National Standard for Specifications for the Chromaticity of Solid State Lighting (SSL) Products, ANSI C78.377-2017. Other Warranty:
RAB warrants that our LED products will be free from defects in materials and workmanship for a period of five (5) years from the date of delivery to the end user, including coverage of light output, color stability, driver performance and fixture finish. See our full warranty here. Buy American Act Compliance:
RAB values USA manufacturing! Upon request, RAB may be able to manufacture this product to be compliant with the Buy American Act (BAA). Please contact customer service to request a quote for the product to be made BAA compliant.
More Information

PRT55YW Specification Sheet

Case Quantity1
Wattage55 Watts
Order CodePRT55YW
Color Rendering Index (CRI) 74 CR
Color Temperature3000K
ManufacturerRab Lighting
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