RAB SWISH34 2x4 LED Troffer — 40W Selectable, 120-277V, Microwave Sensor

The RAB SWISH34-2X4/MVS is a high-performance 2x4 LED troffer designed for modern commercial ceiling grids. Operating at up to 40W on a universal 120-277V input, this large-format fixture features field-adjustable wattage and selectable CCT capabilities alongside an integrated microwave occupancy sensor. Engineered with an IC-rated sheet metal housing, it provides efficient, automated illumination for large offices, schools, and healthcare facilities while adhering strictly to energy conservation standards.

Key Features

• Power Consumption: 40W (Field-adjustable 40/35/30W)
• Input Voltage: 120-277V
• Color Temperature: Selectable CCT (3500K/4000K/5000K)
• Control: Integrated Microwave (MVS) Occupancy Sensor
• Dimming: 0-10V
• Environmental Rating: Damp location and IC rated
• Housing: Sheet metal with frosted polycarbonate lens
• Lifespan: 100,000 hours (L70)

Typical Applications

• Large commercial office spaces
• Restrooms and long enclosed corridors
• Educational institutions
• Healthcare facilities
• Areas with cubicles or partitions

Performance & Light Output

This 2x4 troffer delivers high-efficacy illumination at a maximum 40W setting, optimized for continuous operation in expansive commercial spaces. 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 for improved visual comfort, backed by a robust 100,000-hour LED lifespan.

Electrical & Controls

Powered by an isolated, Class 2 constant current driver, the fixture operates smoothly on 120-277V circuits. This specific model features an integrated Microwave (MVS) occupancy sensor, which detects fine motion through minor physical obstructions like bathroom stalls or office partitions, ensuring lights remain on when the space is actively occupied. It also includes 0-10V dimming leads for integration with secondary daylight harvesting or building management systems.

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 fully enclosed design minimizes dust accumulation and protects the internal LEDs. It is strictly IC rated, authorizing safe, direct contact with standard ceiling insulation, and carries a UL listing for use in damp environments.

Installation & Mounting

Designed for rapid retrofitting and new construction, the luminaire fits easily into standard 2x4 T-grid suspended ceilings. It features pre-installed integral grid clips that bend firmly over the T-bar to secure the unit against seismic activity and vibration. Electrical splices are made easily via the top access plate, and support wire holes are provided for anchoring to the structural ceiling per commercial safety codes.

What's Included

• (1) 2x4 LED Troffer Fixture
• (1) Integrated Microwave Sensor
• Integral T-Grid Mounting Clips