RAB SWISHAIR 1x4 Air Return LED Troffer — 30W Selectable, 120-277V, Battery Backup

The RAB SWISHAIR1X4/E is a specialized 1x4 air return LED troffer engineered for commercial spaces requiring efficient HVAC integration and emergency life safety. Operating at up to 30W on a universal 120-277V input, this fixture features discreet air vents built directly into the frame alongside an integrated emergency battery backup system. It provides highly versatile, field-adjustable illumination for modern offices while ensuring code compliance for emergency egress.

Key Features

• HVAC Integration: Vented air return slots
• Emergency System: Integrated battery backup
• Power Consumption: 30W Max (Field-adjustable)
• Input Voltage: 120-277V
• Color Temperature: Selectable CCT (3500K/4000K/5000K)
• Dimming: 0-10V
• Lens: Frosted polycarbonate
• Housing: Die-formed sheet metal
• Lifespan: 100,000 hours (L70)

Typical Applications

• Commercial office spaces with return-air plenums
• Healthcare facilities and clean rooms
• Educational institutions
• Emergency egress routes and corridors
• Conference rooms

Performance & Light Output

This 1x4 air return troffer delivers high-efficacy illumination at a maximum 30W setting. In the event of a power failure, the integrated emergency battery activates, operating the fixture at a reduced lumen output to safely illuminate evacuation paths. It is equipped with field-selectable technology, allowing installers to toggle between 3500K, 4000K, and 5000K color temperatures directly on the unit. The frosted polycarbonate lens ensures even, volumetric light distribution that significantly reduces screen glare.

Electrical & Controls

Powered by an isolated, Class 2 constant current driver, the fixture operates smoothly on 120-277V circuits. It includes 0-10V dimming leads for normal operation control. The emergency system includes a visible indicator light and test switch to verify battery health and ensure compliance with mandatory safety inspections.

Construction & Durability

The fixture is constructed from heavy-duty sheet metal, formed into an architectural center-basket profile and finished in a highly durable, high-reflectance white powder coat. The unique frame features engineered slots that allow air to pass through the fixture body into the plenum above, reducing the need for separate return grilles in the ceiling grid. It is UL listed for damp locations.

Installation & Mounting

Designed for rapid retrofitting and new construction, the luminaire fits easily into standard 1x4 T-grid suspended ceilings. It features pre-installed integral grid clips that bend firmly over the T-bar to secure the unit. Electrical splices are made easily via the top access plate, and installers must ensure an unswitched hot line is connected to charge the emergency battery. Support wire holes are provided for anchoring to the structural ceiling.

What's Included

• (1) 1x4 Air Return LED Troffer Fixture
• (1) Emergency Battery Backup Unit
• Integral T-Grid Mounting Clips