Alphalite IRT-24H/840 42W 2×4 IRT 42W Troffer 4000K

MFG ID: IRT-24H/840
SKU: AL-IRT-24H/840-42W



  • Description
  • Additional information


This LED Troffer Retrofit Kit from Alphalite emits 4,338 lumens of 4000K color light with a lumen efficacy of 114 lumens/watt. It also offers 10-100% dimming and can be used with dimmers and sensors for even more energy savings. It is UL/cUL listed and FCC compliant, and is a great option for offices, retail stores, and other indoor general/ambient illumination locations.

Rugged construction: solid die-formed, cold-rolled steel. Interior utilizes highly reflective powder coat finish. All surfaces coated and baked post-fabrication with high gloss powder-paint. Diffuser lens provides even and consistent lgiht while eliminating pixelation. Tool-less removal of diffuser allows access to LED array. LED module and driver are replaceable. Easy and convenient installation utilizes existing luminaire body, reduces labor hours.

Luminaire utilizes long life, high efficacy LEDs and a highly efficient, reliable LED driver. 120V-277V input voltage for increased versatility. 0-10V continuous dimming comes standard. Ideal when used in conjunction with controls and sensors. Comes equipped with quick disconnect for compliance with US code.

Installs within existing troffer and louvers. Utilizes existing luminaire body, eliminating the need to remove and dispose of old hardware. LED module arrays and drivers accessible from fixture during service and operation, no need to access via plenum.

Occupants can realize a productive and comfortable atmosphere through enhanced light quality and distribution. Diffuser shape, pattern, and opacity designed in conjunction with precisely-engineered
reflector cavity angles to distribute LED light consistently, reducing glare and pixelation.

Highly reflective powder coat finish. Baked white matte paint, applied after fabrication.

Certifications / Regulatory
UL/cUL listed. All components used have UL approval. UL Class 2. Power supply: SCP, OTP, OVP protection, FCC Part 15 Class B, UL8750 Class 2.

5-year limited warranty. See complete warranty terms for details.

Additional information

Weight 11 lbs
Dimensions 1214 × 606 × 67 in