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Rab SWISHFA-ISLAND2X4 - 2x4 LED Troffer - Wattage and Color Selectable

29W / 39W / 49W - 3500K / 4000K - Equivalent to (3) F32T8 or (3) F28T5 - 3,537-5,561 Lumens - 83 CRI - 120-277V - White Finish

Part # : 144075
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Product Description

Rab Lighting SWISHFA-ISLAND2X4 Features:

  • Field-adjustable light output (3 discrete steps)
  • White tunable (2 discrete color temperatures)
  • 100,000-Hour LED lifespan
  • 5-Year, No-Compromise Warranty

Field Adjustability

Field Adjustable: Field Adjustable Light Output: 2' x 4': 29W/39W/49W (factory default 39W)

Color temperature:  Selectable by 3500K and 4000K


Drivers: Class 2, Constant Current, 120-277V, 50/60Hz

29W: 120V: 0.25A, 208V: 0.14A, 240V: 0.12A, 277V: 0.11A

39W: 120V: 0.33A, 208V: 0.19A, 240V: 0.17A, 277V: 0.14A

49W: 120V: 0.41A, 208V: 0.24A, 240V: 0.21A, 277V: 0.18A

Dimming Driver

Driver includes dimming control wiring for 0-10V dimming systems. Requires separate 0-10V DC dimming circuit. Dims down to 10%.


Housing: Galvanized sheet metal

Finish: Formulated for high durability and long-lasting color

Mounting: Recessed into T-grid ceiling. Surface and recessed mounting kits available for drywall ceilings.


Equivalent to (3) F32T8 or (3) F28T5

Product Specifications

  • Manufacturer's Number: SWISHFA-ISLAND2X4
  • Order Code: 119
  • Brand: RAB Lighting
  • UPC Number: 192552001335
  • GTIN: 00192552001335
  • Size: 2 x 4
  • Wattage: 29/39/49 Watt
  • UL Listed: Wet Locations
  • LM 79: Yes
  • LM 80: Yes
  • Color Temp: 3500K/4000K
  • Bulb Color: Adjustable
  • Lumens: 3537-5561
  • CRI: 83
  • Voltage: 120-277V
  • Housing: Galvanized Sheet Metal
  • Fixture Type: LED Troffer
  • Length: 47-3/8"
  • Width: 23-5/8"
  • Height: 2-5/8"
  • Finish: White
  • Life Hours: 100,000 Hours
  • Warranty: 5 Year
  • Weight (LBS): 17.48

Applications/Usage & Features


UL Listed: Suitable for dry and damp locations.

CCEA Compliant: Luminaire Requirements used in Environmental Air Space per the electrical code specification of the City of Chicago

IESNA LM-79 & IESNA LM-80 Testing: RAB LED luminaires and LED components have been tested by an independent laboratory in accordance with IESNA LM-79 and LM-80.


Lifespan: 100,000-Hour LED lifespan based on IES LM-80 results and TM-21 calculations


THD: 2.93% at 120V, 5.63% at 277V

Power Factor: 99.69% at 120V, 95.2% at 277V

Surge Protection: 2kV

LED Characteristics

LEDs: Long-life, high-efficacy, discrete, surface-mount LEDs

Color Stability: LED color temperature is warrantied to shift no more than 200K in color temperature over a 5-year period

Color Uniformity: RAB's range of Correlated Color Temperature follows the guidelines of the American National Standard for Specifications for the Chromaticity of Solid State Lighting (SSL) Products, ANSI C78.377-2017.


Operating Temperature: -20°C (-4°F) to 40°C (104°F)


IC Rated: Suitable for direct contact with insulation

Reflector: Aluminum with high reflectance white finish, optimized for uniform distribution.

Lens: Frosted polystyrene

Green Technology: Mercury and UV free. RoHS-compliant components.


Warranty: RAB warrants that our LED products will be free from defects in materials and workmanship for a period of five (5) years from the date of delivery to the end user, including coverage of light output, color stability, driver performance and fixture finish. RAB's warranty is subject to all terms and conditions found at

Trade Agreements Act Compliant: This product is a product of Cambodia and a "designated country" end product that complies with the Trade Agreements Act

Buy American Act Compliance: RAB values USA manufacturing! Upon request, RAB may be able to manufacture this product to be compliant with the Buy American Act (BAA). Please contact customer service to request a quote for the product to be made BAA compliant.

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