Lutron LED Ballast Retrofit Kit T5 4000K, Case of 12 (3LD4T5-2M40-12)

Product Overview

The Lutron 3LD4T5-2M40-12 is a retrofit kit for converting existing 2‑lamp, 4 ft T5 fluorescent fixtures to dimmable LED while reusing the fixture housing and lamp sockets. This listing is for a case of 12 kits.

Each kit uses a 3‑wire driver intended to pair with Lutron 3‑wire dimmers and provides a 4000K color temperature. When used with a compatible Lutron control, the kit supports dimming to 1% as specified by the product information.

Key Features

• Retrofit solution for 2‑lamp T5, 4 ft fluorescent fixtures
• 4000K color temperature
• 3‑wire driver designed to pair with Lutron 3‑wire dimmers
• Dimmable to 1% with compatible Lutron control
• Reuses existing fixture housing and lamp sockets
• Packaged as a case of 12 kits (SKU 3LD4T5-2M40-12)

What this kit does

The 3LD4T5-2M40-12 is an LED ballast/driver retrofit kit for 2‑lamp, 4 ft T5 fluorescent fixtures. It is intended to convert existing fluorescent fixtures to dimmable LED while reusing the original housing and sockets. The kit provides a 4000K color temperature.

• Retrofit solution for 2‑lamp T5, 4 ft fixtures
• Case contains 12 individual kits (SKU 3LD4T5-2M40-12)

Recommended applications

Common uses include fluorescent-to-LED retrofit projects in commercial and institutional settings where neutral white light and dimming capability are desired.

• Offices and schools
• Retail areas
• Warehouses and other commercial settings
• Energy- and maintenance-reduction retrofit projects

Compatibility and controls

The kit's driver uses a 3‑wire wiring configuration and is intended to pair with Lutron 3‑wire dimmers. Product information specifies dimming down to 1% when used with a compatible Lutron control.

• 3‑wire driver — pairs with Lutron 3‑wire dimmers
• Dimming: to 1% with compatible Lutron control (per product information)

Installation and selection notes

Match the retrofit kit to the existing fixture's lamp type, lamp length, and lamp count before ordering and installation. The kit is specified for 4 ft T5 fixtures with two lamps and is intended to reuse original sockets and housing during retrofit.

• Confirm existing fixture is a 2‑lamp, 4 ft T5 with compatible sockets
• Verify intended Lutron dimmer compatibility to achieve the specified 1% dimming performance

Key specifications

Reference specifications for this SKU.

• Brand: Lutron
• Model / SKU: 3LD4T5-2M40-12
• Product type: Ballast & LED Driver (retrofit kit)
• Wiring: 3‑Wire (ballast / LED driver)
• Lamp type: T5
• Lamp length: 4 ft
• Lamp count: 2
• Color temperature: 4000K
• Dimming range: 1% (with compatible Lutron control)
• UPC: 784276306966

Before You Order

Confirm the kit matches the existing fixture's lamp type, lamp length, and lamp count before ordering.

• Verify existing fixture is a 2‑lamp, 4 ft T5 with compatible sockets
• Confirm the intended Lutron 3‑wire dimmer is compatible if 1% dimming is required

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Lutron LED Ballast Retrofit Kit T5 4000K, Case of 12 (3LD4T5-2M40-12). For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.