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

  • LEDVANCE Expands Ontario Presence with New Specification Agent

    LEDVANCE Expands Ontario Presence with New Specification Agent

    LEDVANCE is pleased to announce the appointment of Sterling Architectural Products Ltd. (Sterling Lights) as their new specification agent in Ontario. This partnership strengthens LEDVANCE’s presence in the region and reinforces their commitment to serving the professional lighting design and specification community with innovative, reliable lighting solutions. With decades of experience and a service-driven mindset,… Read More…

  • May 29, 2025 - Eureka Wins Three 2025 Red Dot Awards for Product Design

    Eureka Wins Three 2025 Red Dot Awards for Product Design

    Eureka is pleased to announce that its Velia, Cirra, and Junction luminaires have each received a 2025 Red Dot Design Award for Product Design. It is the 11th consecutive year that Eureka products have been honored with this prestigious award, which is a testament to the company’s consistency and relentless drive to design exceptional luminaires.… Read More…


Design

  • The Difference Between Accent, Ambient & Task Lighting: Ultimate Guide

    The Difference Between Accent, Ambient & Task Lighting: Ultimate Guide

    In interior design, lighting is not just about brightening the room. Sensitive lighting layout is the key in the whole aesthetic atmosphere. An outstanding lighting solution will not rely on one type of fixture. Rather, it is through the combination of different types of lighting. Accent, ambient, and task lighting are three basic types of… Read More…

  • Graphic Office Interiors Enhance Their Office Space, Incorporating State-Of-The-Art Lighting Solutions

    Graphic Office Interiors Enhance Their Office Space, Incorporating State-Of-The-Art Lighting Solutions

    Graphic Office Interiors, a renowned office design and furnishings company serving Vancouver Island since 1966, embarked on a unique lighting project for their personal office in Saanichton, BC. This project marked the first collaboration between Kelly Inglis of Mac’s II Agencies and Graphic Office Interiors’ in-house registered interior designer, Laura Harlos. Known for their exclusive Steelcase furniture line, modular moveable… Read More…


New Products

  • Legrand Unveils Wattstopper i3:  Next-Generation Lighting & Building Intelligence Solution Powered by KODE Labs

    Legrand Unveils Wattstopper i3:  Next-Generation Lighting & Building Intelligence Solution Powered by KODE Labs

    Legrand has announced the launch of the Wattstopper i3 Platform, a next-generation lighting and building intelligence solution powered by KODE Labs, a recognized name in advanced smart building technology. Wattstopper i3 unites Legrand’s established Wattstopper DLM and Wattstopper PLUS systems under a cohesive interface. With KODE’s award-winning OS at its core, the platform consolidates data… Read More…

  • Acuity: New C1D2 Emergency Exit Combo – HLEMC

    Acuity: New C1D2 Emergency Exit Combo – HLEMC

    The HLEMC from Holophane is a high-performing, IP66 rated emergency exit combo that is designed for use in Class 1, Div 2, groups A, B, C, & D hazardous environments, meeting up to a T3C temperature rating. The HLEMC is designed with a one-piece corrosion-resistant enclosure that is high-impact resistant to protect fixture against elements,… Read More…