RAB C-SWISH1X4/E LED Troffer — 20/25/30W, 3,955 lm, 3500K–5000K, 120–277V, DLC Premium

The RAB C-SWISH1X4/E is a 1×4 recessed LED troffer with factory-integrated emergency battery backup, designed for commercial interior applications including offices, healthcare, education, and retail. Wattage is field-selectable between 30W, 25W, and 20W — factory default 30W — and color temperature is field-selectable between 3500K, 4000K, and 5000K via accessible switches, no tools required. At peak output, the fixture delivers 3,955 lumens at 138.3 lm/W and carries DLC Premium certification. The battery backup operates the LED lamp for 90 minutes upon power loss and is wired for 120–277V.

Key Features

• Factory-Integrated Emergency Battery Backup: Operates the LED lamp for 90 minutes upon power loss — wired for 120–277V. Cold weather starting for battery: 5°C (41°F).
• Battery Backup Light Loss Factor: At 29W input: 21.2% · At 25W input: 17.3% · At 19W input: 14.0%.
• Selectable Wattage: Field-adjustable between 30W, 25W, and 20W via accessible onboard switches — no tools required. Factory default: 30W.
• Wattage Equivalency: Replaces conventional fluorescent 1×4 troffer fixtures.
• Maximum Lumen Output: Up to 3,955 lm at 30W/4000K.
• Peak Efficacy: Up to 138.4 lm/W at 20W/4000K.
• CRI: 83–85 across all wattage and CCT combinations.
• Selectable CCT: Field-adjustable between 3500K, 4000K, and 5000K — no tools required. Factory default: 4000K.
• Dimming: 0–10V dimming — dims to 10%.
• Voltage & Driver: 120–277V universal voltage, 50/60Hz. Class 2, Constant Current driver.
• Location Rating: UL Listed for damp locations.
• IC Rated: Suitable for direct contact with insulation.
• Operating Temperature: Cold weather starting −20°C (−4°F) standard; 5°C (41°F) for battery. Maximum ambient 40°C (104°F).
• Certifications: UL Listed (damp locations) · DLC Premium (S-W5P3TN).
• Rated Life: 100,000-hour LED lifespan based on IES LM-80 results and TM-21 calculations.
• Warranty: 5-year RAB warranty covering light output, color stability, driver performance, and fixture finish.

Performance & Light Output

The C-SWISH1X4/E offers three-way selectable wattage and three-way selectable CCT, enabling precise output tuning from 2,606 lm to 3,955 lm across nine wattage/CCT combinations.

CRI ranges from 83–85 across all combinations. Rated lifespan: 100,000 hours per IES LM-80 and TM-21.

Smart & Control Features

The C-SWISH1X4/E supports 0–10V continuous dimming as standard. Additional control configurations are available as separate factory-configured suffix products:

• Microwave Sensor w/ Battery Backup (C-SWISH1X4/MVS/E): Microwave occupancy sensor with integrated emergency battery backup.
• Microwave Sensor only (C-SWISH1X4/MVS): Factory-installed microwave occupancy sensor without battery backup.
• Lightcloud® Controller (C-SWISH1X4/LC): Wireless Lightcloud® controller for group-based scheduling and dimming.
• Lightcloud® Controller w/ Battery Backup (C-SWISH1X4/LC/E): Lightcloud® control with integrated emergency battery backup.
• Lightcloud Blue w/ Sensor & Battery Backup (C-SWISH1X4/LCBS/MVS/E): Full control package — Lightcloud Blue, microwave sensor, and emergency battery backup.

Electrical

Class 2, Constant Current driver rated for 120–277V AC, 50/60Hz. Power Factor 99.7% at 120V, 98% at 277V. THD 7.05% at 120V, 14.02% at 277V. Surge protection L-N: 1kV, L/N-PE: 2kV. Driver includes dimming control wiring for 0–10V dimming systems — requires separate 0–10V DC dimming circuit, dims to 10%. Battery backup operates lamp for 90 minutes upon power loss; wired for 120–277V. Mercury-free, UV-free, RoHS compliant.

Construction

Housing & Thermal: Polypropylene (PP) housing with integral reflector on the sides featuring high-reflectance finish, optimized for uniform distribution. IC Rated — suitable for direct contact with insulation.

Lens & Optics: Polycarbonate lens for uniform, glare-controlled illumination across the full 1×4 grid opening.

Finish: High-durability, long-lasting color finish. White.

Environmental & Safety: UL Listed for damp locations. Mercury and UV free. RoHS-compliant components. Cold weather starting −20°C (−4°F) standard; 5°C (41°F) for battery. Maximum ambient temperature 40°C (104°F) standard and for battery.

Dimensions & Weight: 47 11/16" L × 11 15/16" W × 2 15/16" D. Weight: 8.1 lbs.

Installation & Mounting

Mounting: Recessed ceiling — 1×4 T-bar grid (standard). Surface mount via optional kit (sold separately).

Wiring: Wattage and CCT selections should be made prior to installation using accessible field-adjustment switches. Battery backup is factory-wired for 120–277V.

Accessories (Sold Separately):

• Surface Mounting Kit: SMKPANEL1X4 — LPANEL 1×4 Surface Mounting Kit, White

Certifications & Rebates

• UL Listed — damp locations
• DLC Premium — qualifies for the highest tier of utility rebate programs. To verify rebate eligibility, visit designlights.org and search product code S-W5P3TN.
• IC Rated — suitable for direct contact with insulation
• RoHS Compliant
• Buy American Act (BAA): Available upon request — contact RAB customer service for a BAA-compliant quote.

Typical Applications

• Offices and commercial spaces requiring emergency egress lighting compliance — 90-minute battery backup supports life-safety requirements
• Healthcare facilities — damp location rating and 83–85 CRI support accurate visual assessment in critical environments
• Classrooms and educational facilities — emergency backup ensures continued illumination during power outages
• Retail and hospitality interiors — up to 3,955 lm and 138.3 lm/W with emergency capability for uninterrupted operation
• Corridors and stairwells — battery backup combined with damp rating covers egress path lighting requirements

What’s Included

• RAB C-SWISH1X4/E LED Troffer fixture with emergency battery backup — White
• Mounting hardware for recessed grid installation