More Options for Luminaires with User Replaceable Linear LED Lamps

LDS UL C81 400

Aug 15, 2019

On July 1, 2019, NEMA (National Electrical Manufacturers Association) published revisions to the C81 series of ANSI standards for electric lamp bases and lampholders. As part of these revisions, the G6.6 Snap-Fit system for LED tubular lamps, originally announced by UL on February 13, 2017, has been renamed “GJ6.6t” and now includes two additional fit variations as shown below:

  • GJ6.6t Two-pin with an additional ground pin T-LED Snap-Fit design
  • GJ6.6d-1 Two-pin for T-LED Snap-Fit design (New)
  • GJ6.6d-2 Two-pin for T-LED Snap-Fit design – Low Voltage (New)

Also as part of this latest publication, ANSI adopted the IEC GR6d fit system for double-capped flat LED linear lamps and modules. This fit system can accommodate up to 15 key designations for various applications and electrical specifications.

  • GR6d fit system for double capped linear LED lamps (New)

One key benefit of these new ANSI standardized fit systems designated for LED technology is that they can mechanically reject legacy non-LED lamps (e.g., fluorescent) without the need to rely on markings. Together, these new fit systems will accommodate several new options for linear LED luminaires that afford lamp replacement flexibility analogous to traditional technologies.

Source

Related Articles

Changing Scene

  • Dec 4, 2025 - Wow Lighting and Controls Announces New Partnership with Eterna Light

    Wow Lighting and Controls Announces New Partnership with Eterna Light

    Wow Lighting and Controls is excited to welcome Eterna Light to their lighting family! A Canadian manufacturer based in Côte Saint-Luc, Quebec, Eterna Light specializes in high-end architectural luminaires for commercial, hospitality, and retail projects. Their broad lineup includes downlights, cylinders, track lighting, and advanced backlighting solutions, all designed to bring flexibility, performance, and timeless… Read More…

  • Dec 3, 2025 - Magic Lite Announces the Promotion of Jennifer Penton to Chief Operating Officer

    Magic Lite Announces the Promotion of Jennifer Penton to Chief Operating Officer

    Magic Lite is proud to announce the promotion of Jennifer Penton to Chief Operating Officer (COO)! Jennifer brings a strong personal connection to Magic Lite. With a PhD in engineering and early experience working in the Magic Lite warehouse as a teenager, she has grown with the company from the ground up. Over the past… Read More…

Design

New Products

  • EB Horsman: Philips LED Lamps & TLED Tubes – Efficient Lighting Solutions for Any Space

    EB Horsman: Philips LED Lamps & TLED Tubes – Efficient Lighting Solutions for Any Space

    Looking to upgrade your lighting with high-efficiency LED solutions? Philips offers a wide range of LED lamps and TLED retrofit tubes that deliver energy savings, long life, and professional-grade illumination for commercial and residential projects. Philips LED lamps provide consistent brightness and excellent color rendering, making them ideal for offices, retail environments, warehouses, and homes.… Read More…

  • Omnilumen: Metalumen – Rail 2 Acoustic Direct/Indirect (RM2DU-ACL)

    Omnilumen: Metalumen – Rail 2 Acoustic Direct/Indirect (RM2DU-ACL)

    When designing lighting for a space, why not consider solving an often-overlooked issue in that space – noise. Metalumen’s Rail 2 Acoustic is now available with direct/indirect distribution, while quietly adding light to your environment with sound-dampening properties. The Rail 2 Acoustic RM2DU-ACL is constructed with ezoBord sound-absorbing baffles making it a 2-in-1 solution that… Read More…