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Aluminium 4 ft curved LED surface light fixture

Acuity Lithonia

Acuity Lithonia STL4 48L EZ1 LP835 LED Volumetric Surface Fixture 4Ft light kit

SKU CH-62TK-A4RK9

A 4 ft LED volumetric surface fixture delivering 4,850 lm at 3500 K with 107.2 lm/W efficiency and 45.2 W power draw

  • weight12.5
  • materialAluminum
  • 4 ft volumetric surface fixture provides broad overhead illumination
  • 3500 K colour temperature delivers neutral white light for workspaces
  • 4850 lumens output ensures bright coverage across the room
  • 2 lm/W efficacy reduces energy consumption per lumen
  • 2 W maximum draw keeps operating costs low

4 ft LED Volumetric Surface Fixture

This 4 ft LED volumetric surface fixture provides integrated lighting for commercial and residential interiors. It uses an integrated LED array with a curved lens to distribute light evenly across the space. The aluminium housing weighs 12.5 kg and supports both suspended and surface mounting options.

Suits general interior lighting

Buyers needing a dimmable 3500K LED fixture to replace two T8 lamps will find this unit matches that requirement. It is not suited for installations requiring linkable continuous runs or integrated occupancy sensors. Projects demanding higher lumen output or different colour temperatures should evaluate alternative fixtures.

45.2 W maximum fixture wattage

The fixture draws a maximum of 45.2 W while delivering 850 lm at 107.2 lm/W efficacy. This single power figure determines whether the existing circuit and driver can support the load. Verify the wattage against your electrical plan before purchase.

Highlights

  • 4 ft volumetric surface fixture provides broad overhead illumination
  • 3500 K colour temperature delivers neutral white light for workspaces
  • 4850 lumens output ensures bright coverage across the room
  • 2 lm/W efficacy reduces energy consumption per lumen
  • 2 W maximum draw keeps operating costs low

Specifications

BrandLITHONIA LIGHTING
weight12.5
materialAluminum

Questions about this item

How much power does the 45.2 W LED fixture draw when it runs continuously?

The integrated LED array is rated at 45.2 W maximum fixture wattage, so that is the continuous draw under normal operation.

Does the 4 ft STL4 need any separate bulbs or a driver to operate?

No, the 3500 K LEDs are built in and the driver is housed inside the aluminium body; nothing extra is required.

Will the 850 lm output match the brightness of the two T8 tubes I am replacing?

Yes, the fixture is specified as an LED replacement for two T8 lamps and delivers 850 lm at 107.2 lm/W.

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