Technical Info

Acrylic & Polycarbonate Compatibility

Packaging and Shipping

Williams' commitment to quality doesn't end when a fixture comes off the line. Proper packaging and shipping is a critical part of our quality process. That's why every fixture we ship is wrapped with the Williams name proudly displayed on every carton and corner board.

Fixture Maintenance

Cleaning, lamping/relamping, and ballast maintenance.

IP Ratings and NSF Certifications

The Difference Between Dry, Wet, and Damp Locations

NEC) National Electric Code and UL Standard 1598 definitions. National Electric Code Article 410 - Luminaires in Specific Locations

Linear LED Driver Options

LED Driver descriptions and compatibility chart.

Ballasts: Logic, Manufacturer-Specific Ballasts

All ballasts are high quality, industry-recognized manufacturers such as Advance, General Electric, Osram, ULT, or when necessary, substitutions equal in performance and warranty. Unless otherwise specified, Williams light fixtures are provided with "generic" ballasts. The term generic means the ballast/manufacturer is determined by the factory.

GTD/ETS: Generator Quantities with Flex/Cord Charts

Batteries: Emergency Lighting Options

EM batteries provide a minimum 90 minutes of emergency illumination. The multi-lamp option distributes lumen output evenly across all lamps. Standard emergency batteries are UL listed for dry locations only.

Dimming Ballasts

Ballast Disconnect

NEC Compliance Statement

CEC Compliance Statement

Lamp & Ballast Warranty Contact Information

Lamps and ballasts are warrantied by their respective manufacturers, not H.E. Williams, Inc. To replace defective lamps and ballasts, please contact the lamp or ballast manufacturer.

Power Entry

Cord Entry Diagrams, Flexible Whips, Cord for Suspended Product. All Williams recessed troffers are available with a flexible whip, factory attached and hard wired to the luminary.

Quick-Connect Wiring

Tandem In-Line Wiring & Master/Satellite System

Factory installed branch circuit wiring with nylon self-locking polarized connectors. All Williams Fluorescent® recessed troffers are available with a flexible metallic wiring harness, factory attached and hard wired to the luminary.

Electrical Accessories

6' Cord/Plug 120V(-6CPI/5-15P), 277V(-6CPI/7-15P), Fast(-GLR) & Slow(-GMF) Fuse, Ballast Suppressor.

Occupancy Sensors — Industrial Series

Occupancy Sensors & Lamp Life

Occupancy sensors have long been used as a tool to help manage lighting-related energy costs. While maximized lights-off time cuts electrical use, there is considerable evidence that shorter switching cycles reduce fluorescent lamp life.

Ballast and Emergency Ballast Ordering Information

Electronic, Dimming, Emergency, Residential, Residential Dimming | All ballasts are high quality, industry recognized manufacturers, i.e. Advance, GE, Osram, ULT, or when necessary, substitutions equal in performance and warranty.

Lamp Comparison & Lamp Base Data

Quick guide to lamp performance and specifics. Consult lamp manufacturer for detailed information.

Retrofit Mounting Pan

Use the retrofit mounting pan when remodeling or replacing fixtures where there is a finished ceiling with fixed apertures. The retrofit mounting pan is cut out on one side to “hook” the assembly through an existing hole. Two available pans accommodate round reflector sizes 6", 7½", 8½", 10", & 12".

Sloped Ceiling Adapter with Pan Assembly

Spun aluminum sloped ceiling adapters are available in increments of 5 degrees from 10°—30°. Sloped ceiling adapters are available for Downlighting recessed light fixtures with “SCA” option. Consult factory for height.

Reflector Colors, Luminous Glass, and Trims

For an added touch of distinction you may choose a reflector color that will coordinate with the colors of your building's interior and enhance the color characteristics of the lamp source. Decorative clear and colored glass disks, rings, & shields. Drop acrylic, drop opal, baffled splays and other downlighting trim options.

Mounting Systems for Suspended Fixtures

Suspended - Aircraft Cable Installation

Mounting Systems for Surface, Strip, Wrap and Industrial Fixtures

Sway adapters, stem/swivel canopies, hangers, spacers, GAT fasteners.

Stem & Canopy Instruction Sheet

Drywall Kit (-DFK)

Allows use of any Williams grid troffer in ceilings that require a flange product. Ordering information and installation instruction sheet.

Color-match with RAL^® Colors

Since 1927, RAL^® has created a uniform language when it comes to color. They have standardized, numbered and named the abundance of colors. These standards are easily understandable and applicable worldwide.

Finish: Standard & Custom Colors

Williams Fluorescent^® is committed to the highest quality: ALL parts powder coated AFTER fabrication. Anti-microbial white paint option prevents the spread of micro-organisms and suppresses the growth of mold and bacteria. Clear coat finish shows steel imperfections, streaks, and variations.

Anti-Microbial Finish - (AMW Option)

Downlighting Finish: Standard & Custom Colors

Gasketing, Ceiling Types & Earthquake Clips

Industrial, Strip & Wrap Fixture Accessories

Metal Louvers, metal frame with lens, reflector row aligner, reflector end plates, wire-guards. Williams Fluorescent^® AI Series perforation, louver, and slot styles.

Suspended Accessories

Feeders, canopies, cable, joiners, cords, and corners

Troffer Doors, Optional Shielding, and Grid Riser

Steel, aluminum, and tamper resistant door frames, optional troffer shielding such as the Directional Lens with Radio Suppression Grid & the 1½" Drop White Acrylic, Grid Riser provides a skylight effect.

Troffer Lenses, & Louvers (Acrylic & Styrene)

Pattern #12, #15, #19, KSH, and injection molded acrylic troffer lenses. ½" & 1" deep white, or silver acrylic and styrene parabolic louvers.

Troffer Louvers (Aluminum) & Wall Slot Shielding (Blade & Parabolic)

¾" & 1½" aluminum parabolic louver in specular, semi-specular, and white finishes. 1½". Blade & parabolic, white & semi-specular Wall Slot shielding.

Special Reflectors - Strips

Special reflectors transform Williams’ strip luminaires into powerful light managers to maximize installation flexibility.

Polycarbonate Shields

Remote Heads

Wireguards