Kason 11809000003 1809 LED Walk-In Light Fixture – 32W, 120–277V

Kason 11809000003 1809 LED Walk-In Cooler & Freezer Light Fixture

The Kason 11809000003 is a GreenGuard 1809 Series surface-mounted LED light fixture designed for commercial walk-in coolers, freezers, refrigerated storage rooms, and other compatible damp or wet environments.

This low-profile fixture delivers a manufacturer-rated 4,233 lumens of neutral-white illumination at 4000K while consuming 32 watts on a compatible 120–277V AC electrical supply.

Featuring an aluminum housing, high-impact polycarbonate lens, and IP65-rated construction, the Kason 1809 provides an enclosed commercial lighting solution for facilities requiring illumination in refrigerated and moisture-prone areas.

Important: Kason has published different electrical and lumen specifications for earlier revisions of this manufacturer part number. The specifications below follow Kason's December 2025 manufacturer sheet. Confirm the identification label on the actual supplied fixture before ordering.

Manufacturer Product Specifications

• Manufacturer: Kason Industries
• Manufacturer Part Number: 11809000003
• Product Series: 1809 GreenGuard
• Product Type: Surface-Mounted LED Light Fixture
• Manufacturer Description: LED Fixture, Flat, 4000K
• Input Voltage: 120–277 VAC
• Frequency: 50/60 Hz
• Power Consumption: 32 Watts
• Current: 0.3 Amps at 120V
• Light Output: 4,233 Lumens
• Color Temperature: 4000K Neutral White
• Color Rendering Index: CRI 85
• Dimming: 0–10V Compatible
• Power Factor: Greater Than 0.9
• Published Efficiency: 133 Lumens Per Watt
• Overall Length: 17-1/8 Inches
• Overall Width: 5-1/8 Inches
• Overall Height: 3-3/8 Inches
• Housing: Aluminum
• Lens: High-Impact Polycarbonate
• Ingress Protection: IP65
• Operating Temperature: -40°F to 77°F (-40°C to 25°C)
• Mounting: Surface Mount
• Rated Operating Life: 50,000+ Hours
• Warranty: 5-Year Limited Warranty on Light Engine
• Safety: UL Listed, NSF Component, RoHS

Specification Verification: These specifications describe the current manufacturer-published configuration. Inspect the fixture label and documentation supplied with the actual product to verify its production revision.

Commercial Walk-In Cooler and Freezer Applications

The Kason 1809 LED fixture is designed for appropriate commercial refrigerated and moisture-prone environments, including:

• Walk-in coolers
• Walk-in freezers
• Commercial cold-storage rooms
• Refrigerated food storage areas
• Commercial foodservice preparation and storage areas where the fixture's ratings are appropriate
• Compatible damp and wet commercial utility areas

Equipment Compatibility: This fixture is selected primarily by electrical supply, environmental rating, installation requirements, physical dimensions, and appropriate mounting rather than a universal equipment model number.

No complete, manufacturer-verified walk-in cooler or freezer model compatibility list has been established for this specific fixture. Confirm the installation requirements before ordering.

IP65 Protection and Cold-Storage Lighting

The Kason 1809 fixture is designed for refrigerated and moisture-prone environments. Its IP65 rating identifies protection against dust ingress and water jets when properly installed and sealed according to the manufacturer's requirements.

The fixture is not intended for underwater or submerged installations. All wiring penetrations, conduit openings, and housing connections must be properly sealed to maintain the required environmental protection.

The high-impact polycarbonate lens provides an enclosed light-distribution surface, while the aluminum housing supports the intended commercial fixture construction.

Features and Benefits

• Manufacturer-listed 4,233-lumen light output.
• 32-watt LED design.
• 120–277V AC operating range.
• 4000K neutral-white illumination.
• Compatible 0–10V dimming capability.
• Low-profile surface-mounted configuration.
• High-impact polycarbonate lens.
• Aluminum housing.
• IP65-rated moisture and dust protection.
• Operating-temperature range down to -40°F.
• Manufacturer-rated 50,000+ hour LED service life.
• Five-year limited warranty on the light engine.

Common Symptoms of a Failing LED Fixture

• Fixture does not illuminate despite proper electrical supply.
• Intermittent lighting or unexpected shutdown.
• Visible damage to the housing or lens.
• Condensation or moisture accumulation inside the enclosure.
• Damaged wiring or electrical connections.
• Reduced light output compared with normal operation.
• LED driver or control failure.
• Fixture flickering when supplied by an incompatible dimming system.
• Corrosion or deterioration around mounting and wiring penetrations.

Technician Note: A lighting failure does not necessarily mean the complete fixture must be replaced. Electrical supply problems, faulty switching, dimming-control issues, damaged wiring, or failed related components may cause similar symptoms.

Technician Troubleshooting Guide

Qualified electrical service personnel should verify the complete lighting circuit before replacing the fixture.

• Confirm the original manufacturer part number.
• Verify the supply voltage is appropriate for the fixture.
• Inspect the existing fixture housing and lens for damage.
• Check electrical wiring and connections according to approved procedures.
• Confirm that the wall switch or lighting controller operates correctly.
• Inspect the fixture for evidence of water infiltration.
• Check that conduit and wiring openings are properly sealed.
• Verify the intended 0–10V dimming arrangement if applicable.
• Inspect mounting hardware and the supporting surface.
• Compare the original fixture with the required replacement configuration.

Before You Order — Critical Checks

1. Confirm the manufacturer part number is 11809000003.
2. Check whether the existing fixture is a Kason 1809 or another approved model.
3. Verify that the electrical supply is compatible with 120–277V AC.
4. Confirm the required input frequency and wiring arrangement.
5. Verify the mounting location and available installation clearance.
6. Check the fixture dimensions: 17-1/8" x 5-1/8" x 3-3/8".
7. Confirm that IP65 protection is appropriate for the installation.
8. Verify the required color temperature and light output.
9. Check whether the installation uses 0–10V dimming controls.
10. Inspect the existing electrical junction box and wiring.
11. Confirm the actual production revision and technical label.
12. Confirm the hardware and installation components included with the supplied product.

Installation and Electrical Safety

Installation must be performed by qualified electrical personnel and comply with applicable electrical codes and the manufacturer's instructions.

Disconnect and secure the electrical supply before working on the fixture. Verify that the circuit is de-energized using approved procedures.

Kason's installation instructions describe mounting the appropriate junction box, making the correct wiring connections, sealing the conduit openings, and attaching the fixture housing.

The manufacturer identifies supplied hole plugs and silicone sealant for specified openings. Suitable junction-box mounting fasteners are not provided in the manufacturer's installation instructions.

Proper sealing is essential to prevent condensation or water accumulation inside the fixture. Kason warns that failure to seal the fixture correctly can void the warranty.

After installation, test normal fixture operation and verify that the lighting circuit and any compatible dimming controls operate correctly.

Frequently Asked Questions

1. What is Kason 11809000003?

It is the Kason GreenGuard 1809 Series surface-mounted LED light fixture designed for compatible commercial refrigerated, damp, and wet environments.

2. What voltage does the Kason 1809 LED fixture use?

The current manufacturer specification lists a 120–277V AC input at 50/60 Hz. Confirm the actual fixture's rating before installation.

3. How bright is the Kason 1809 fixture?

Kason's December 2025 specification lists 4,233 lumens with 4000K neutral-white color temperature. Earlier versions of this part number have different published lumen ratings.

4. Can this fixture be installed inside a walk-in freezer?

Yes, Kason designs the 1809 Series for appropriate cooler and freezer environments and specifies an operating range down to -40°F. The installation must meet the manufacturer's electrical, environmental, and mounting requirements.

5. Is the Kason 1809 fixture waterproof?

It carries an IP65 rating, which provides protection against dust and water jets when correctly installed. It is not rated for submersion, and all required openings must be properly sealed.

6. Is Kason 11809000003 dimmable?

Yes. The current manufacturer specification identifies 0–10V dimming capability. A compatible dimming-control system and proper wiring are required.

7. What are the fixture dimensions?

The nominal overall dimensions are 17-1/8 inches long, 5-1/8 inches wide, and 3-3/8 inches high. Verify the original mounting requirements and junction-box arrangement.

8. How do I confirm the correct replacement?

Compare manufacturer part number 11809000003, fixture label, voltage, power rating, dimensions, installation method, environmental requirements, and dimming configuration. Contact PartsDirectOnline if identification assistance is needed.

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Need Assistance? Call PartsDirectOnline at 631-873-0509 with the original fixture part number and electrical specifications for help confirming the replacement.