Diamond Group Tail Light

Diamond Group LED Tail Lights: Built for the Road Ahead

When it comes to exterior safety lighting for RVs, trailers, and recreational vehicles, Diamond Group has established itself as a trusted name in the industry. The brand's tail light lineup reflects the same philosophy that defines its broader catalog: purpose-built LED technology designed to perform reliably in demanding real-world conditions. For anyone upgrading or replacing worn-out incandescent tail lights, Diamond Group offers a compelling, DOT-compliant alternative.

Multi-Diode LED Performance

Diamond Group's tail lights are engineered around high-diode-count LED arrays that deliver significantly more output than traditional bulb-based systems. Models such as the oval LED tail light feature 52 individual diodes, providing bright, consistent illumination for stop, turn, and running light functions. For larger applications, Diamond Group also produces units with up to 104 diodes and a large surface-area light source — making them especially effective for wide-body trailers and motorhomes where rear visibility is critical.

Weatherproof Construction & DOT Compliance

A standout characteristic of Diamond Group's tail light offerings is their weatherproof construction. These units are designed to shrug off rain, road wash, and moisture intrusion — a vital quality for any exterior lighting component exposed to the elements year-round. Importantly, Diamond Group tail lights carry DOT approval, meaning they meet Federal Motor Vehicle Safety Standards for use on public roads. This compliance gives owners confidence that their rig is both safe and street-legal.

Versatile Mounting & Easy Installation

Diamond Group tail lights are designed for surface mounting with straightforward 3-wire connections, making them accessible for DIY installers who want a clean, reliable swap from incandescent systems. Oval form factors are among the most popular, with sizes like the 8" oval fitting a wide range of standard trailer cutouts. Some models also incorporate a license plate holder, consolidating rear lighting into a single, tidy assembly. The brand's product line is designed to work as part of a complete LED conversion system — for example, pairing oval tail lights with compatible marker lights for a fully modernized rear lighting setup.

Why Choose Diamond Group for Tail Lights?

Diamond Group is backed by parent company Valterra and offers over 500 products spanning the RV, marine, and automotive segments. Their tail lights benefit from that deep electrical expertise, combining energy-efficient LED technology with rugged housings suited for life on the road or at a campsite. Whether you're outfitting a travel trailer, fifth wheel, or utility hauler, Diamond Group delivers DOT-approved, weatherproof tail lighting that prioritizes visibility, longevity, and ease of installation.