Optronics ST36RS Universal Mount Passenger Side Tail Light – Waterproof

The Optronics ST36RS Universal Mount Passenger Side Tail Light is built to perform in demanding environments while keeping a clean, low-profile appearance on your trailer or vehicle. Its waterproof design and durable construction mean you can rely on clear signaling even under rain, mud, or road spray. The light’s layout is tailored for 2" center mounting and easy integration with existing wiring, making replacement or upgrades straightforward for many trailer setups.

Key design details support practical use across a range of applications. The unit features a hardwired connection with a separate ground, an acrylic lens that stays optically clear, and a tough plastic housing that resists corrosion from moisture, salt on winter roads, and everyday wear. The included stainless steel mounting hardware helps ensure a secure fit in busy parking lots or rugged work sites. A shockproof socket helps protect the bulb life, reducing maintenance while you focus on the road ahead.

Core benefits at a glance

• Waterproof, low-profile design stays discreet and durable.
• Screw-on, replaceable lens for simple maintenance and quick upgrades.
• Acrylic lens with sturdy plastic housing for clear visibility and longevity.
• Hardwired with leads and separate ground, plus included stainless mounting hardware.

Ideal for trailers and vehicles that require reliable stop/turn/tail signaling on longer configurations, the ST36RS is designed for practical installation and consistent performance. It is commonly used on trailers that exceed 80 inches in length, where a universal mount and robust weather resistance are particularly valuable. While no product guarantees results, many users appreciate the combination of visibility, durability, and straightforward maintenance that the ST36RS offers. The packaging notes a three-year support window, reflecting ongoing product support and confidence in service life.

How this helps in real life

When you’re loading at dawn or navigating heavy weather, predictable signaling is essential. The ST36RS combines a clear signal with a compact footprint, helping keep your rear visibility strong without adding bulk. The design supports easy swaps of lenses and bulbs, so you can adapt the setup as components wear over time. The stainless hardware and weather-resistant housing contribute to dependable performance across seasons, while the universal mounting simplifies upgrades or replacements across different trailers or vehicles.