Acuity Lithonia 2FSL4 48L EZ1 LP840 LED Recessed Troffer 4000K 46W 120-277V light kit

2x4 LED Troffer Kit

The Acuity Lithonia 2FSL4 recessed troffer kit fits a standard 2 ft by 4 ft ceiling grid and delivers 4,979 lumens at 4,000 K. Integrated LEDs remove the need for separate lamps or ballasts, and the 120-277 V input works on common commercial circuits. DLC 5.0 Premium listing confirms utility-rebate eligibility for new construction or retrofit projects.

Replaces Four-Lamp T8 Fixtures

This kit replaces a four-lamp T8 fluorescent troffer while cutting maximum fixture draw to 38.5 W and raising efficacy to 129 lm/W. The jump is worth it when energy codes demand lower lighting power density or when maintenance budgets cannot support relamping cycles. Dimming is supported, so output can be trimmed further for daylight harvesting or occupancy control.

Check Grid, Voltage and Controls

Verify the ceiling grid accepts a 2 ft by 4 ft recessed housing and that the branch circuit supplies 120 to 277 V AC. Confirm the existing dimmer or building-management system is compatible with the driver’s dimming protocol before ordering. No emergency battery backup is included, so separate egress lighting must satisfy local code.