Kason 11810LCT400 LED Walk-In Light Fixture – 40W, 4000K

Kason 11810LCT400 LED Light Fixture for Walk-In Coolers and Freezers

Kason 11810LCT400, model 1810LCT400, is a 40-watt LED light fixture designed for commercial walk-in coolers and freezers. It combines 4000K illumination, a polycarbonate enclosure, and 0–10V dimming capability for compatible refrigerated-space lighting applications.

The fixture operates on 120–277V power at 50/60 Hz and mounts using supplied surface-mounting brackets. Its published operating temperature range is -40°F to 104°F, making temperature, electrical supply, and mounting clearance important checks before ordering.

Product Specifications

• Manufacturer: Kason
• Manufacturer Part Number: 11810LCT400
• Model Designation: 1810LCT400
• Product Type: LED walk-in light fixture
• Power: 40W
• Input Voltage: 120–277V
• Frequency: 50/60 Hz
• Color Temperature: 4000K
• Dimming: 0–10V
• Operating Temperature: -40°F to 104°F (-40°C to 40°C)
• Housing: Gray polycarbonate
• Diffuser: Frosted polycarbonate
• LED Tray: White-painted steel
• Mounting: Surface-mounting brackets supplied
• Manufacturer-Rated Life: 50,000+ hours
• Published Ratings: UL approved for wet locations, NSF listed component, and IP65

Fixture Dimensions and Mounting Clearance

Kason lists the overall fixture dimensions as 46-15/32 inches long x 4-59/64 inches wide x 2-9/16 inches high. Check these measurements against the available installation space, existing mounting arrangement, and conduit entry location.

Do not treat the fixture body as exactly 48 inches long. A four-foot lighting category does not establish the actual housing length or guarantee that an existing fixture's mounting holes will align.

Cold-Storage Lighting and Enclosure Protection

The polycarbonate housing and frosted diffuser enclose the LED assembly for the intended walk-in application. The wet-location and IP65 ratings depend on installation according to the manufacturer's instructions, including correct lens seating, secured latches, and a properly sealed wiring entry.

Confirm the installation environment and required operating temperature before replacing an existing light. Equipment brand alone does not establish mounting or electrical compatibility.

Before You Order

• Match the manufacturer number: Confirm 11810LCT400 against the specified fixture or replacement documentation.
• Verify the supply: Check the required voltage, frequency, grounding, and wiring arrangement.
• Measure the installation space: Compare the complete housing dimensions, mounting location, and conduit clearance.
• Check dimming controls: Confirm compatibility with the fixture's 0–10V control arrangement. The dimming signal is not the fixture's supply voltage.
• Confirm environmental requirements: Review the operating temperature and location ratings for the intended application.

When to Inspect the Existing Fixture

Have the lighting system inspected if the fixture stops illuminating, flickers, has damaged mounting points, or shows moisture inside the enclosure. A qualified electrician should check the power supply, connections, and any dimming controls before determining that the fixture needs replacement.

Cracked lenses, damaged enclosure seals, and unsecured latches should also be evaluated. Replacing the fixture without correcting an improperly sealed wiring entry can allow the moisture problem to return.

Installation Requirements

Installation and electrical servicing must be performed by a qualified electrician. Disconnect power before installation or service, ground the fixture, and follow Kason's instructions and applicable electrical requirements.

Kason specifies supply wiring suitable for 90°C. Secure the mounting brackets, seal the wiring opening as directed, and seat the lens correctly with all latches engaged. The manufacturer identifies this fixture as having no serviceable parts.

Frequently Asked Questions

What is the difference between 1810LCT400 and 11810LCT400?

1810LCT400 is Kason's model designation. The complete manufacturer part number used to identify this fixture is 11810LCT400.

Is this fixture exactly 48 inches long?

No. Kason lists the housing length as 46-15/32 inches. Compare the complete dimensions and mounting arrangement rather than relying on a nominal four-foot description.

Can this light be installed in a walk-in freezer?

Kason specifies the fixture for walk-in cooler and freezer applications within its published -40°F to 104°F operating range. Confirm the installation's electrical and environmental requirements.

What voltage and wattage does it require?

The fixture is rated at 40W with a 120–277V input and 50/60 Hz frequency. Verify the available supply before installation.

What does 0–10V dimming mean?

It identifies the fixture's dimming-control arrangement. It does not mean the fixture operates from a 10V power supply. Have the installer confirm compatible controls and wiring.

Is the fixture rated for wet locations?

Kason lists wet-location approval and IP65 protection. Follow the installation instructions so the lens, latches, and wiring entry maintain the enclosure's intended protection.

Are mounting brackets included?

Yes. Kason's installation instructions identify supplied mounting brackets. The installer must select suitable attachment hardware for the mounting surface and installation.

Is this a replacement bulb or a complete fixture?

This is a complete LED light fixture, not a replacement fluorescent tube or screw-in bulb. Kason identifies the assembly as having no serviceable parts.

Related Lighting and Identification Help

Browse our commercial refrigeration lighting fixtures and Kason replacement parts.

For help identifying the correct fixture, call 631-873-0509 with the existing fixture's manufacturer number, electrical ratings, dimensions, and clear photographs of the mounting and connection area.