Lithonia Lighting CPRB 18LM MVOLT CPRB LED Round High bay Luminaire Instructions

CPRB LED Round High bay LuminaireModel Number(s)

T25 Torx Screw Driver
Wire Strippers Adjustable wrench
Optional Access

CPRB 18LM MVOLT CPRB LED Round High bay Luminaire

Surface Mount Bracket (SMB) 3/4” Adapter (JEBLMTG ADAPTER)

Protect yourself. Before installing,read these instructions carefully and save them for future reference.
Date Installed:________________



  • To reduce the risk of death, personal injury or property damage from fi re, electric shock, falling parts, cuts/abrasions, and other hazards please read all warnings and  instructions included with and on the fi xture box and all fi xture labels.
  • Before installing, servicing, or performing routine maintenance upon this equipment, follow these general precautions.
  • Commercial installation, service and maintenance of luminaires should be performed by a qualifi ed licensed electrician.
  • For Residential installation: If you are unsure about the installation or maintenance of the luminaires, consult a qualifi ed licensed electrician and check your local electical code.
  • Maintenance of the luminaires should be performed by person(s) familiar with the luminaires’ construction and operation and any hazards involved. Regular fi xture  maintenance programs are recommended.
  • This fi xture is intended to be connected to a properly installed and grounded UL listed junction box.
  • It will occasionally be necessary to clean the outside of the refractor/ lens. Refractor/lens should be washed in a solution of warm water and any mild, non-abrasive  household detergent, rinsed with clean water and wiped dry. Should optical assembly become dirty on the inside, wipe refractor/lens and clean in above manner,  replacing damaged gaskets as necessary.
  • DO NOT INSTALL DAMAGED PRODUCT! This luminaire has been properly packed so that no parts should have been damaged during transit. Inspect to confi rm.  Any part damaged or broken during or after assembly should be replaced.
  • Recycle: For information on how to recycle LED electronic products, please visit
  • These instructions do not purport to cover all details or variations in equipment nor to provide every possible contingency to meet in connection with installation,  operation, or maintenance. Should further information be desired or should particular problems arise which are not covered suffi ciently for the purchaser’s or owner’s  purposes, this matter should be referred to Acuity Brands Lighting, Inc.


  • Disconnect or turn off power before installation or servicing.
  • Verify that supply voltage is correct by comparing it with the luminairelabel information.
  • Make all electrical and grounded connections in accordance withthe National Electrical Code (NEC) and any applicable local coderequirements.
  • All wiring connections should be capped with UL approved wireconnectors.


  • Wear gloves and safety glasses at all times when removing luminaire from carton, installing, servicing or performing maintenance.
  • Avoid direct eye exposure to the light source while it is on.


  • Allow lamp/fi xture to cool before handling. Do not touch enclosure, lens or light source.
  • Do not exceed maximum wattage marked on luminaire label.
  • Follow all manufacturer’s warnings, recommendations and restrictions including but not limited to: driver type, burning position, mounting locations/methods,  replacement and recycling.
  • Use only lamps that comply with ANSI standards.


  • Keep combustible and other materials that can burn, away from lamp/  lens.
  • Do not operate in close proximity to persons, combustible materials or substances aff ected by heat.


  • Never connect components under load.
  • Do not mount or support these fi xtures in a manner that can cut the outer jacket or damage wire insulation.
  • Unless individual product specifi cations deem otherwise: Never connect an LED product directly to a dimmer packs, occupancy sensor, timing device, or other related  control devices. LED fi xtures must be powered directly off a switched circuit.
  • Unless individual product specifi cations deem otherwise: Do not restrict fi xture ventilation. Allow for some volume of airspace around the fi xture.
    Avoid covering  LED fi xtures with insulation, foam, or other material that will prevent convection or cooling.
  • Unless individual product specifi cations deem otherwise: Do not exceed fi xtures maximum ambient temperature.
  • Only use fi xture in its intended location.
  • LED products are Polarity Sensitive. Ensure proper Polarity before installation.
  • Electrostatic Discharge (ESD): ESD can damage LED fi xtures. Personal grounding equipment must be worn during all installation or servicing of unit.
  • Do not touch individual electrical components as this can cause ESD, shorten lamp life, or alter performance.
  • Some components inside the fi xture may not be serviceable. In the unlikely event your unit may require service, stop using the unit immediately and contact an ABL  representative for assistance.
  • Changes or modifi cations not expressly approved by Acuity Brands Lighting could void the authority to operate the equipment.
  • Always read the fi xtures complete installation instructions prior to installation for any additional fi xture specifi c warnings.

All luminaires that contain electronic devices that generate frequencies above 9kHz from any component within the luminaire comply with one of the following Part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. This device may not cause harmful interference
  2. This device must accept any interference received, including interference that may cause undesired operation.

This device complies with Part 18 of the FCC Rules but may cause interference with cordless and cell phones, radios, televisions, and other electronic devices. To correct the  problem move the device away from the luminaire or plug into a different outlet. This product may cause interference to radio equipment and should not be installed near maritime safety communications equipment or other critical navigation or communications equipment operating between 0.45-30MHz.

Failure to follow any of these instructions could void product warranties.
For a complete listing of product Terms and Conditions, please visit

. Acuity Brands Lighting, Inc. assumes no responsibilities for claims arising out of  improper or careless installation or handling of its products.



Description Quantity
A LED Light Fixture…………………………………………………………………….1
B Integrated Mounting Hook ………………………………………………………..1
C Wire Nuts* ……………………………………………………………………………..3
D Safety Cable* …………………………………………………………………………1
*Contained in parts packs

Remove the new LED high bay from packaging and inspect for any damage. Handle new LED fi xture with care. If damaged do not use; call your local rep for replacement.
The CPRB models noted as ALO and SWW have a Switchable CCT and ALO (Adjustable Lumen Output) feature. Please refer to the section CCT/ALO Selection to adjust  the switches. The CCT switch is preset at 5000K and the ALO switch is preset at 15000lm (ALO13) and 24000lm (ALO14) from the factory.
The CPRB luminaires have been designed and tested in accordance with applicable UL/CSA standards and are suitable for use in damp locations.
Max luminaire weight is 6 lbs (2.7kg).
Note: Turn off power at circuit breaker box!


This fi xture is designed to be suspended from the supplied Hook or fl ush mounting installation with optional Surface Mount Bracket (SMB). Provide suitable hardware in  accordance with local codes that is capable of supporting the full weight (6 lbs (2.7kg)) of the luminaire.
1.1 Standard Mounting type (Hook Suspended)- Lift Integrated Mounting Hook to vertical position (See Figure 1).

1.2 Suspend fi xture with chain or cable securely attached to fi xture Hook. Note: after chain or cable has been attached, verify that the Hook Spring clip has closed. Once the  fi xture is suspended, attach safety cable (1) to opening on driver housing and secure other end of cable to permanent structure. (See Figure 2).
Optional Mounting- Surface Mount Bracket (SMB) (Sold Separately)- The optional Surface Mount Bracket is designed to attach to CPRB fi xture housing with supplied mounting screws.
2.1 Remove the four housing screws from fi xture (see Figure 3).

2.2 Install Mounting Bracket base (2) onto fi xture housing aligning mounting holes with holes on housing. Install provided mounting screws (3) to attach Mounting Bracket bases to fi xture housing. (See Figure 4).

2.3 Install Surface Mount Bracket (4) to mounting surface with suitable hardware (not provided) to support full weight (6 lbs (2.7kg)) of luminaire.
2.4 Once Surface Mount Bracket (4) is installed, align vertical legs of Mounting Bases (2) with Mounting bracket (4) and attach to bracket with provided Hex bolts and lock washers (see Figure 5).

Optional Mounting- 3/4” Adapter (JEBLMTG ADAPTER) (Sold Separately)- The optional Adapter (5) is designed to attach to the CPRB fi xture and allows for optional stem or hook installation. (See Figure 6)

Supply Wire connections- Make all supply wire connections in accordance with local electrical codes.
3.1 Connect the LED high bay wiring to line wire, black-to-black, whiteto-white and green-to-green. Purple and Pink wires are for 0-10V dimming and shall be capped for each wire when not used. Use only UL listed wiring connectors (90°C or greater) and UL listed wiring (90°C or greater).

CCT/ALO Selection- if equipped
Locate the CCT and ALO Switches on top of driver. Default CCT is set at 5000K and default light output is set at 15000lm (ALO13) and 24000lm (ALO14). Slide switch to  select desired CCT and light output.

Care and Maintenance
Wipe off exterior dirt and debris using a soft, clean cloth. Do not use abrasive cleaners on optical surfaces as this may result in loss of optical effi ciency.

Trouble Shooting Guide

If this fi xture fails to operate properly, use the guide below to diagnose and correct the problem.

  1. Verify that power is turned on at switch andbreaker
  2. Verify that line voltage is correct
  3. Check wiring and connections.

If further technical assistance is required, contact:
Technical Support at: (800) 705-SERV (7378)

Cleaning and Maintenance

Caution: Be sure fi xture temperature is cool enough to touch. Do not clean or maintain while fi xture is energized.
This LED light provides low maintenance service with no bulbs to change. Clean surfaces with mild soap and water. Do not use abrasive materials such as scouring pads or  powders, steel wool or abrasive paper.
WARNING: There are no user serviceable parts inside fi xture.

Acuity Brands Lighting, Inc.
One Lithonia Way, Conyers, GA 30012

Documents / Resources

Lithonia Lighting CPRB 18LM MVOLT CPRB LED Round High bay Luminaire [pdf] Instructions
CPRB 18LM MVOLT CPRB LED Round High bay Luminaire, CPRB 18LM MVOLT, CPRB LED Round High bay Luminaire, Round High bay Luminaire, High bay Luminaire


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