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

The RAB C-SWISH1X4 is a 1×4 recessed LED troffer designed for commercial interior applications including offices, healthcare, education, and retail. Wattage is field-selectable between 20W, 25W, and 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, qualifying for the highest tier of utility rebates. The fixture operates on 120–277V with 0–10V dimming and is UL Listed for damp locations.

Key Features

• Selectable Wattage: Field-adjustable between 20W, 25W, and 30W via accessible onboard switches — no tools required.
• 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 via accessible onboard switch — no tools required.
• Lens & Optics: Diffuse lens panel for uniform, glare-controlled light distribution across the 1×4 grid opening.
• Dimming: 0–10V dimming — compatible with standard 0–10V dimming controls.
• Voltage & Driver: 120–277V universal voltage, 50/60Hz.
• Location Rating: UL Listed for damp locations.
• Operating Temperature: Suitable for standard commercial interior environments.
• Certifications: UL Listed (damp locations) · DLC Premium (S-W5P3TN).
• Rated Life: Long-rated LED lifespan per IES TM-21 standards.
• Warranty: Backed by RAB Lighting’s standard commercial product warranty.

Performance & Light Output

The C-SWISH1X4 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.

Smart & Control Features

The C-SWISH1X4 supports 0–10V continuous dimming as standard and is compatible with RAB’s Lightcloud® wireless control platform and microwave occupancy sensing — available as factory-configured suffix options ordered as separate products:

• 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.
• Microwave Occupancy Sensor (C-SWISH1X4/MVS): Factory-installed microwave occupancy sensor for automatic on/off control.
• Microwave Sensor w/ Battery Backup (C-SWISH1X4/MVS/E): Microwave occupancy sensor with integrated emergency battery backup.
• Lightcloud Blue w/ Occupancy Sensor (C-SWISH1X4/LCBS/MVS): Lightcloud Blue enabled wireless control with microwave occupancy sensor.
• Lightcloud Blue w/ Sensor & Battery Backup (C-SWISH1X4/LCBS/MVS/E): Full control package — Lightcloud Blue, microwave sensor, and emergency battery backup.

Electrical

The C-SWISH1X4 operates on 120–277V universal voltage, 50/60Hz, with a high-efficiency driver meeting commercial grade power factor and THD standards. The fixture supports 0–10V dimming and is RoHS compliant.

Construction

Housing & Thermal: Steel housing construction with integrated thermal management to protect internal electronics and support rated LED lifespan.

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

Finish: White powder-coat finish.

Environmental & Safety: UL Listed for damp locations. RoHS compliant. Suitable for standard commercial interior environments.

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

Installation & Mounting

Standard Hardware: Included mounting hardware for recessed T-bar grid ceiling installation.

Mounting Options: Recessed 1×4 T-bar grid (standard). Surface mount via optional SMKPANEL1X4 kit (sold separately).

Wiring: Wattage and CCT selections should be made prior to installation using accessible field-adjustment switches.

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 with your utility provider, visit designlights.org and search product code S-W5P3TN.
• RoHS Compliant

Typical Applications

• Open-plan and private offices — 3500K–5000K selectable CCT adapts to varied task and ambient lighting requirements
• Healthcare exam rooms and clinical spaces — damp location rating and 83–85 CRI support accurate visual assessment
• Classrooms and educational facilities — selectable wattage allows output to be right-sized for room size and occupancy
• Retail interiors — up to 3,955 lm and 138.3 lm/W delivers bright, efficient illumination for merchandise presentation
• Hospitality common areas and corridors — slim 2 15/16" depth integrates cleanly into standard commercial ceiling grids

What’s Included

• RAB C-SWISH1X4 LED Troffer fixture — White
• Mounting hardware for recessed grid installation