Letric Lighting Turn Signal Light

Letric Lighting Co. LED Turn Signal Lights

When it comes to upgrading your motorcycle's turn signals, few brands have earned as much respect in the Harley-Davidson community as Letric Lighting Co. Their turn signal lights aren't just about replacing aging incandescent bulbs — they represent a fundamental rethink of how motorcycle lighting can combine visibility, style, and dead-simple installation into one package.

The Switchbacks™ Difference

The centerpiece of Letric Lighting's turn signal lineup is their proprietary Switchbacks™ technology. Rather than a simple on/off amber blinker, Switchbacks units serve a dual purpose: white running lights that automatically convert to amber turn signals when activated, then switch back to white once signaling is complete. This is the same behavior riders have come to expect from modern factory touring bikes and luxury automobiles, now delivered as a straightforward retrofit.

The Standard Bullet Style Switchbacks™ offer a white running light with amber turn signals, while the Deluxe versions add an additional mode where the signal transitions through an amber running phase before returning to white — giving riders multiple behavioral options to match their preference or local regulations.

A Lineup Built for Harley-Davidson Platforms

Letric Lighting Co.'s turn signal catalog is deeply vehicle-specific, engineered to fit popular Harley-Davidson platforms without custom fabrication or complex wiring. Key product lines in this category include:

• Bullet Style LED Turn Signal Inserts — Front and rear inserts for Harley models from 2000–2025, fitting directly into existing bullet-style housings for a clean OEM look with LED output.
• Flat Style LED Inserts — Designed for Harley models spanning 1986–2025, offering a low-profile alternative for those who prefer a streamlined appearance.
• Engine Guard LED Running Lights w/ Switchback Turn Signals — A compact aluminum-housed unit that mounts to standard 1.25" engine guard tubing, adding both running light and amber turn signal functionality to crash bars.
• Fairing Vent LED Turn Signals — Purpose-built for Harley Road Glide models (2015–2024), these fit inside the fairing vent openings for an integrated, stealthy look with ultra-bright white running and amber turn output.
• 45 Caliber LED Mini Marker Lights — A compact option delivering white running and amber turn signal function, ideal for riders looking to add supplemental signal presence.

Plug-and-Play Installation

One of the most consistently praised attributes of Letric Lighting Co. turn signal products is their commitment to plug-and-play installation. Most inserts and assemblies use the existing 1157 socket found on a wide range of Harley-Davidson models, meaning no splicing, no custom harnesses, and no trips to an electrician. The brand also offers supplemental accessories like front turn signal tap harnesses for 2014–2026 Harley models when additional integration is needed.

Compliance and Durability

Letric Lighting Co. designs its LED turn signal products with real-world riding in mind. Select products carry DOT, SAE, and E-Mark compliance, ensuring they meet regulatory standards for street use. The brand's focus on vehicle-specific fitment and electrical compatibility means riders can upgrade their signals while preserving the integrity of the motorcycle's factory electrical system — an important consideration on modern CAN/Bus-equipped Harley-Davidson touring bikes.

Whether you ride a Softail, Touring, Sportster, Dyna, or CVO, Letric Lighting Co.'s turn signal lights are engineered to fit your machine. Browse the full turn signal light category or explore the complete Letric Lighting Co. catalog to find the right upgrade for your ride.