3 in 1 LED Post Cap for Avalon Railing by RDI
RDI LED Post Cap Options for Avalon Railing
- What it is: A LED-illuminated post cap that fits 2½″- wide Avalon railing posts — the standard post size used in the Avalon Aluminum Railing system by RDI.
- Light type: Uses low-voltage LED lighting (not solar), so you’ll need a 12 V transformer and low-voltage wiring to power the lights.
- Power/Output: Around 1.6 W total with integrated LED elements at about 5000 K cool white light — bright enough for accent and safety lighting on deck rails.
- Includes: Post top and a 2-way splitter to help connect multiple lights in one run.
- Installation: Designed for plug-and-play use within low-voltage systems — runs from a transformer with matching RDI LED accessories.
- Best for: Consistent, wired illumination where sunlight is limited or when solar isn’t desired.
VersaRail/Avalon LED Post Cap
- Similar in design to the standard Avalon LED post cap, often compatible with Avalon posts and color-matched to finishes like Matte Black, White, or Matte Bronze.
- Works with the low-voltage wiring system and helps unify look and lighting across your Avalon railing.
RDI Contemporary LED Low Voltage Post Cap
- A contemporary-styled low-voltage LED cap that can also be part of RDI’s LED accessory collection.
- Great if you want a simpler, modern appearance while still using low-voltage wiring and control with a central transformer.
Features & Benefits
Ambient and Functional Lighting
- LED post caps provide soft, consistent illumination along rail lines — excellent for evening use, safety lighting, and ambiance.
- They integrate with RDI’s plug-and-play LED system so you don’t need to DIY complicated wiring.
Low-Voltage Operation
- Requires a 12 V transformer and wiring harness; not solar-powered (unlike RDI solar post caps).
- Many RDI LED lights (post caps, under-rail strips, side lights) can share one transformer for a unified system.
Designed for Avalon Posts
- Color-matched and sized specifically for Avalon 2.5″ posts
- Keeps a cohesive look throughout your railing without needing generic or mismatched lighting fixtures.
About this product...
Add lighting to the Avalon Aluminum railing with these new LED Post Caps by RDI. The RDI Avalon low voltage cap will require a transformer and low voltage wiring. This system requires 110 voltage to operate.
DETAILS:
- Made from glass filled nylon
- 1.6 watts each
- fits 2.5" post
- COLOR ~ 5000k
WHAT`S INCLUDED:
Limited Warranty
Lighting
Who is covered:
• A two (2) year limited warranty covers single-family residential properties for solar post top products, including vinyl and aluminum
(excluding battery).
• A five (5) year limited warranty covers single-family residential properties for lights, tops and transformers for low voltage lighting.

