A 2x4 LED panel is the direct successor to the classic fluorescent troffer: it fills a 2 ft x 4 ft opening in a T-bar ceiling and turns it into one wide, even surface of light, with no tubes to replace and no ballast to buzz. It is the go-to format for LED office lighting, classrooms, sales floors and meeting rooms, and a smart upgrade for basement lighting under a drop ceiling or for a garage.
This page covers every way to light a 2x4 opening: flat panels, slim troffers, retrofit kits that convert existing troffers, and the frames and hanging kits that put a 2x4 LED panel on a ceiling with no grid at all. You will find models from Turolight, Ortech, CSC LED, Speclite, Arani, Liteline, Canolight and Light Efficient Design, most with wattage and colour temperature you set on site, whether you are planning a full-floor retrofit or replacing a single fixture.
Every 2x4 fixture shares the same footprint, but they do not all light a room the same way. Here is how the main families compare.
Edge-lit panels send light from LEDs set in the frame into a light guide plate, which keeps the fixture very thin. Backlit panels place the LEDs behind the diffuser for an even smoother glow with fewer hot spots. The Turolight PRO-BLP3 2x4, for example, is an ultra slim backlit model with 50, 40 or 30 W settings (5500, 4400 or 3300 lumens).
The Ortech commercial grade 2x4 troffer keeps a slim profile and offers three selectable colour temperatures. Volumetric troffers from Light Efficient Design spread light across the room's surfaces rather than straight down, which makes a space feel brighter. Compare both styles in the LED troffers category.
Where occupancy varies or emergency lighting is required, a 2x4 with built-in controls saves separate devices. The Turolight RGD-BLP6 2x4 comes with a motion sensor or with a factory-installed 8 W emergency driver, and Arani makes a 2x4 panel with emergency battery backup rated up to 6500 lumens (30-40-50 W).
| Model | Wattage settings | Colour temperature | Voltage | Highlights |
|---|---|---|---|---|
| Turolight RGD-BLP6 2x4 | 45, 40 or 36 W | 3500, 4000 or 5000 K | 120-347 V | Up to 5625 lm, 0-10 V dimming to 1 %, sensor or emergency versions |
| Turolight PRO-BLP3 2x4 | 50, 40 or 30 W | 3500, 4000 or 5000 K | 120-347 V | Ultra slim backlit, up to 5500 lm |
| Arani 2 ft x 4 ft V5 | 30, 40 or 50 W | Variable CCT | 120-347 V | Up to 6500 lm, battery backup version |
| Speclite 2x4 frost white V2 | 72, 60, 50, 40 or 30 W | 3000, 4000, 5000, 5700 or 6500 K | 120-347 V | Steel housing, 0-10 V dimming |
| Ortech 2x4 back lit panel | 30, 40 or 50 W | 3500, 4000 or 5000 K | 120-347 V | 125 lm/W, 0-10 V dimming |
| Liteline EDGE 2x4 | 30 to 50 W | 3000 to 4000 K | 120-347 V | Flat profile, 0-10 V dimming |
| Light Efficient Design 2x4 flat panel fixture | 50 W | 4000 K | 120-277 V | For 120 V or 277 V circuits |
In a T-bar grid, a 2x4 LED panel simply takes the place of a ceiling tile or an old troffer. The panel rests on the tees and is held by safety clips, so the job is mostly wiring and planning:
Weight is rarely an issue: the Speclite frost white 2x4 weighs 6.00 kg, light enough for one installer to lift into the grid. Keep one colour temperature per room and line the panels up in straight rows for a tidy ceiling.
A 2x4 panel is designed to sit in a grid, so on drywall, plaster, wood or concrete it needs a frame. A panel surface mount frame creates a rigid perimeter with fixing points on the solid ceiling and turns the grid panel into a surface-mounted fixture without modifying the light engine, the driver or the diffuser. The Canolight 2x4 ft surface mounted kit, for example, anchors to the ceiling structure and holds the panel flush and square, with no exposed conduit and no visible fastener heads.
Always pair a frame with the panel it was made for: the Ortech surface mount frame, for instance, is designed for the Ortech OD347-2X4D-3CCT back lit panel. Under a high or open ceiling, a hanging kit suspends one 2 ft by 4 ft panel below ducts, pipes and beams, with the height set on site. It is a clean solution for lofts, workshops and commercial spaces with exposed structure.
When old fluorescent troffers are still in good shape, you do not have to tear them out. Light Efficient Design Troffer Transformer kits convert the existing housing into an LED fixture, ending the flicker, buzzing and constant re-lamping of tube fixtures with little ceiling work. They come in flat panel and volumetric styles, including Sensor Ready versions, and some are listed by the pallet of 24 for large jobs.
The Light Efficient Design 2x4 Flex Color flat panel retrofit kit follows the same idea. These kits run on 120-277 V, so in a building wired at 347 V, choose a 120-347 V panel instead. To estimate the payback of a full-floor project, read the LED lighting ROI guide.
A 2x4 panel is nominally 2 ft by 4 ft, sized to drop into a standard 2x4 T-bar opening. For smaller openings, look at 2x2 LED panels or 1x4 LED panels.
Start from the light level the room needs, then divide it by the output of one panel. A 2x4 can deliver up to 6500 lumens (Arani 2 ft x 4 ft), and selectable wattage lets you fine-tune the result once the panels are installed.
Yes. A Troffer Transformer or flat panel retrofit kit from Light Efficient Design reuses the existing 2x4 housing. Check the circuit first, since these kits are rated 120-277 V.
Yes, in a drop ceiling or with a surface mount frame. The Speclite 2x4 frost white panel operates from -25 °C to 50 °C, so it suits an unheated garage, and 5000 K or more gives crisp light for work. The garage and workshop lighting guide covers layout and lumens.
Some do. The Arani 2x4 is offered with an emergency battery backup, and the Turolight RGD-BLP6 2x4 EM has a factory-installed 8 W emergency driver, so the fixture stays lit during a power failure.
Ready to light your 2x4 openings? Compare the 2x4 panels in this category, or browse all LED panels to see every size, troffer and frame.
![[2PK] PANEL LIGHT 2X4' 72-60-50-40-30W 120-347V 30-40-50-57-65K WHITE FROST DIM 0-10V](https://www.lumibox.ca/storage/products/pb24fwfc0720dhl.jpg.webp)
