Letric Lighting Turn Signal Light Assembly

Letric Lighting Co. Turn Signal Light Assemblies: LED Performance Meets Plug-and-Play Simplicity

When it comes to upgrading your motorcycle's turn signals, few brands bring the engineering pedigree and rider-first design philosophy that Letric Lighting Co. delivers. Born in 2018 from the workshop of NAMZ Custom Cycle Products — a globally recognized leader in motorcycle electrical systems — Letric Lighting was purpose-built to bring premium LED lighting to V-twin riders without demanding a professional installer or a complicated wiring project.

Within its turn signal light assembly lineup, Letric Lighting Co. offers a carefully curated range of options tailored specifically for Harley-Davidson and Indian platforms, covering decades of model years from classic iron to the latest touring machines. Whether you're swapping out aging incandescent bullet-style inserts or refreshing a flat-style factory housing, the brand's product engineering revolves around three core principles: superior brightness, clean aesthetics, and effortless installation.

Switchbacks, Bullets, and Integrated Signals — A Style for Every Rider

Letric Lighting's turn signal catalog spans several distinct product families, each addressing a different rider need:

• Premium Bullet Style LED Switchbacks — These inserts are engineered to function as both a running light and an amber turn signal in one compact unit, transitioning color automatically when the turn switch is activated. Available for both front and rear positions on a wide range of Harley-Davidson models, the Switchbacks are among the most popular upgrades for riders who want multi-function visibility without adding hardware.
• Flat Style LED Switchbacks (1157 Inserts) — Designed as a direct upgrade for standard 3-inch flat-style turn signals, these inserts deliver a white running light that switches to bright amber on activation — a seamless drop-in replacement for the factory 1157-socket housings found across many Harley models from 1986 onward.
• Standard LED Bullet Style Turn Signal Inserts — A straightforward, high-output LED upgrade for riders who prefer simplicity. These are engineered as a direct insert swap and represent a cost-effective way to dramatically improve signal brightness and longevity over OEM bulbs.
• Integrated LED Taillight/Turn Signal Assemblies — For riders looking to consolidate rear lighting, Letric offers full taillight assemblies with integrated turn signals, including their Squareback and Slantback designs compatible with Harley-Davidson Touring and Dyna platforms spanning model years from 1984 through 2026.

The Technology Behind the Brightness

Letric Lighting products use surface-mount LEDs on their circuit boards, a construction method that ensures every LED on the board stays illuminated during each color cycle — producing a noticeably brighter, more uniform light output compared to single-point bulb replacements. Critically, the brand's circuit boards feature silicone conformal coating, a protective layer that guards the electronics against moisture, vibration, and road debris. This attention to build quality is what allows Letric Lighting to back their bullet-style LED puck inserts with a lifetime warranty — an industry-leading commitment that speaks to their confidence in the manufacturing and inspection process.

Nearly every turn signal product in the Letric lineup is engineered around their Plug-n-Play installation philosophy. Replacement products are designed to connect directly to your bike's existing harness and fit precisely into OEM housings — no splicing, no fabricating, no guesswork. For older models (typically pre-2014 Harleys), a load equalizer may be needed to normalize flash rate when switching to LED, which Letric also supplies as a compatible accessory.

Built for Harley-Davidson and Indian Riders

Letric Lighting's turn signal assemblies are vehicle-specific by design, with fitment data extending across Harley-Davidson Softail, Dyna, Sportster, Touring, and Road Glide platforms, as well as select Indian motorcycle applications. This specificity ensures proper fit, correct light output angles, and reliable long-term function — the difference between a lighting upgrade that looks factory-correct and one that merely works.

Explore the full Letric Lighting Co. brand page for their complete lighting ecosystem, or browse all turn signal light assemblies to compare options across brands and fitments.