The RAB SWISH34 series is a family of field-adjustable LED troffers available in 1×4, 2×2, and 2×4 form factors, each with selectable wattage and CCT, integrated sensor options, and emergency battery backup configurations. All models are DLC Premium certified under DLC 5.1, UL Listed for dry and damp locations, and operate on 120–277V. The center basket design delivers uniform light distribution across standard T-grid ceiling openings. Rated for 100,000 hours (IES LM-80 + TM-21) with a 5-year RAB warranty.

Model Selection Guide

• SWISH34-1X4 — 1×4 T-grid · 30/25/18W selectable · up to 4,109 lm · 149.2 lm/W peak · DLC Premium S-6GLFQT
• SWISH34-2X2 — 2×2 T-grid · 30/25/18W selectable · up to 3,700 lm · 135.5 lm/W peak · DLC Premium S-9H1B2F
• SWISH34-2X4 — 2×4 T-grid · 40/35/30W selectable · up to 5,509 lm · 145.0 lm/W peak · DLC Premium S-518PBF

Suffix / Configuration Options

• Standard (no suffix): Base fixture · 0–10V dimming · −40°C cold weather start
• /PIR: Integrated passive infrared occupancy sensor · line-of-sight detection · 9–12 ft mounting height
• /MVS: Integrated microwave occupancy sensor · through-partition detection · 9–12 ft mounting height
• /E: Integrated 90-minute emergency battery backup · Life Safety Code egress compliant · 0°C cold weather start
• /LCBS: Lightcloud Blue Bluetooth mesh · no gateway required · combine with /PIR or /MVS
• /LC: Lightcloud Enterprise Zigbee mesh · gateway required · building management integration

Performance & Light Output

SWISH34-1X4 (30/25/18W · DLC Premium S-6GLFQT):
At 30W: 3,930 lm (3500K / 135.5 lm/W) · 4,104 lm (4000K / 146.3 lm/W) · 4,109 lm (5000K / 140.9 lm/W)
At 25W: 3,447 lm (3500K / 138.1 lm/W) · 3,568 lm (4000K / 147.7 lm/W) · 3,576 lm (5000K / 142.7 lm/W)
At 18W: 2,538 lm (3500K / 141.7 lm/W) · 2,607 lm (4000K / 149.2 lm/W) · 2,639 lm (5000K / 146.6 lm/W)
CRI: 85–87 · Peak efficacy: 149.2 lm/W at 18W / 4000K

SWISH34-2X2 (30/25/18W · DLC Premium S-9H1B2F):
At 30W: 3,635 lm (3500K / 125.3 lm/W) · 3,650 lm (4000K / 130.2 lm/W) · 3,700 lm (5000K / 127.6 lm/W)
At 25W: 3,209 lm (3500K / 128.3 lm/W) · 3,240 lm (4000K / 133.6 lm/W) · 3,267 lm (5000K / 130.8 lm/W)
At 18W: 2,415 lm (3500K / 131.1 lm/W) · 2,397 lm (4000K / 135.5 lm/W) · 2,449 lm (5000K / 133.8 lm/W)
CRI: 85–86 · Peak efficacy: 135.5 lm/W at 18W / 4000K

SWISH34-2X4 (40/35/30W · DLC Premium S-518PBF):
At 40W: 5,208 lm (3500K / 130.3 lm/W) · 5,509 lm (4000K / 140.5 lm/W) · 5,387 lm (5000K / 135.1 lm/W)
At 35W: 4,650 lm (3500K / 133.3 lm/W) · 4,875 lm (4000K / 142.8 lm/W) · 4,808 lm (5000K / 138.2 lm/W)
At 30W: 4,140 lm (3500K / 137.5 lm/W) · 4,310 lm (4000K / 145.0 lm/W) · 4,269 lm (5000K / 142.1 lm/W)
CRI: 84–85 · Peak efficacy: 145.0 lm/W at 30W / 4000K

Smart & Control Features

All SWISH34 models include standard 0–10V dimming (10–100%). Sensor and wireless control configurations are ordered by suffix:

• PIR (/PIR): Passive infrared · line-of-sight · 9–12 ft · −22°F to 104°F · 12VDC
• Microwave (/MVS): Active microwave · through-partition · 9–12 ft · −22°F to 104°F · 12VDC
• Lightcloud Blue (/LCBS): Bluetooth mesh · no gateway · combine with /PIR or /MVS
• Lightcloud Enterprise (/LC): Zigbee mesh · gateway required
• MSR1 Remote (SKU: MSR1): Field adjustment of sensor settings · IP20

Electrical

All models: isolated, Class 2 constant-current driver · 120–277V AC, 50/60Hz · surge protection L-N 2.5KV / LN-GND 2.5KV · mercury-free · UV-free · RoHS-compliant. Standard models cold weather start: −40°C. Emergency backup (/E) models cold weather start: 0°C; max ambient: 50°C.

Construction

Sheet metal housing with polycarbonate lens. Center basket design for uniform T-grid light distribution. Suitable for direct contact with insulation. Compatible with standard 1×4, 2×2, and 2×4 T-grid ceiling openings. Optional surface mounting kits: SMKEZPAN1X4 (1×4) · SMKEZPAN2X2 (2×2) · SMKEZPAN2X4 (2×4).

Installation & Mounting

All models recess directly into standard T-grid ceilings with no additional hardware. Surface mounting kits available per form factor (see above). MSR1 remote (SKU: MSR1, IP20) available for field sensor adjustment on all sensor-equipped models.

Certifications & Rebates

UL Listed — All models: dry and damp locations; suitable for direct contact with insulation.

DLC Premium — All form factors are DLC Premium certified under DLC 5.1, qualifying for the highest tier of utility rebates from DLC Member Utilities:

• SWISH34-1X4: DLC ID S-6GLFQT
• SWISH34-2X2: DLC ID S-9H1B2F
• SWISH34-2X4: DLC ID S-518PBF

Search the applicable DLC ID at designlights.org to verify rebate eligibility and locate participating utilities.

RoHS Compliant — All models; mercury-free and UV-free.

Typical Applications

• Open Offices & Lobbies: Selectable CCT and wattage across all three form factors adapt to space requirements without fixture replacement — DLC Premium rebates apply to every SKU in the family.
• Egress Corridors & Stairwells: Specify the /E suffix for any form factor to add integrated 90-minute emergency backup — no separate emergency unit or additional circuit required.
• Classrooms & Conference Rooms: PIR or MVS sensor suffix eliminates standby energy waste; Lightcloud Blue adds wireless zone control without gateway infrastructure.
• Healthcare Facilities: CRI 85–87 (1X4/2X2) and CRI 84–85 (2X4) across all wattage and CCT settings support clinical task accuracy.
• Schools & Government Buildings: Three DLC Premium codes across the family maximize utility rebate returns on large mixed-grid retrofit projects.
• Restrooms & Storage: MVS microwave sensor suffix provides through-partition occupancy detection in enclosed or obstructed spaces.

What’s Included

• 1× RAB SWISH34 LED Troffer (selected form factor and configuration)
• Mounting hardware for recessed T-grid installation