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Manufacturer RAB Lighting
Mfg Catalog # RAIL185NW/D10/LCS
North Coast Part # 1688105


  • Ideal for large spaces
  • 100,000-hour lifespan - virtually maintenance free operation
  • 0-10V driver for variable dimming down to 10%
  • Low-glare design with semi-diffuse lens



  • Watts: 185W
  • Color Temp: 4000K (Neutral)
  • Lumens: 21,357
  • Efficacy: 130.8 lm/W
  • Color Accuracy: 77 CRI
  • L70 Lifespan: 100,000 hours
  • Type: Constant Current
  • 120V: 1.37A
  • 208V: 0.81A
  • 240V: 0.71A
  • 277V: 0.60A
  • Input Watts: 163.30W


  • Weight: 17.6 lbs


  • Installed with Lightcloud: Lightcloud is a commercial wireless lighting control system fully developed and supported by RAB. It's powerful and flexible, yet easy to use and install.
  • Lightcloud Sensor Installed: Occupancy, vacancy, and closed loop daylight harvesting in one versatile sensor. Control any fixture in your Lightcloud system. Can also be used as a load controller. Compatible with the 8.5" reflectors.


  • UL Listing: Suitable for damp locations
  • DLC Listed: This product is listed by Design Lights Consortium (DLC) as an ultra-efficient premium product that qualifies for the highest tier of rebates from DLC Member Utilities. DLC Product Code: P8V27ZAD

LED Characteristics

  • Lifespan: 100,000-hour LED lifespan based on IES LM-80 results and TM-21 calculations
  • 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.


  • Driver: Constant Current, Class 2, 120-277V, 50/60Hz, 120V: 1.37A, 208V: 0.81A, 240V: 0.71A, 277V 0.60A
  • Dimming Driver: Driver includes dimming control wiring for 0-10V dimming systems. Requires separate 0-10V DC dimming circuit. Dims as low as 10%.
  • THD: 5.4% at 120V, 7.5% at 277V
  • Power Factor: 99.8% at 120V, 96.6% at 277V


  • Maximum Ambient Temperature: Suitable for use 12 hours a day, 6 days a week in 60°C (140°F). Suitable for 24/7 use in up to 50°C (122°F).
  • Housing: Extruded aluminum
  • Lens: High-transmittance polystyrene
  • Reflector: Specular, high-reflectance aluminum with 95% reflectivity
  • Mounting: V hooks (chain by others)
  • Finish: Formulated for high durability and long-lasting color
  • Green Technology: Mercury and UV free. RoHS-compliant components.
  • Recommended Mounting Height: Up to 40 ft


  • Replacement: Replaces 250-400W MH
  • 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. RAB's warranty is subject to all terms and conditions found at
  • 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.


UPC 01981363821
Item Long Description Highbay 22In 185W, 4000k, LED, 120-277V, Dimmable, Lightcloud Hb Sensor, White
GTiN 00019813638218
Finish WHITE
Voltage 120/277 Volt
Type BAY Lighting
Applications INDOOR
Weight 17.6 lb
Wattage 185 Watt
Color Accuracy 77 CRI
Lumens 21357 lm
Family Brand Name Rab Design Lighting
Amperage 0.6 Amp
Average Rated Life 100,000 hr
Input Wattage 163.30 W
Power Factor 96.6% At 277V,99.8% At 120V
Efficacy 130.8 LPW
Total Harmonic Distortion 5.4% At 120V,7.5% At 277V

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