Fits Wood 4x4 Post
Solar Post Caps with Adapter for 3.5" Actual Wood Posts
The Ultra Bright Tech Fits Wood 4x4 Post collection brings together solar post caps engineered specifically for nominal 4 inch by 4 inch wood posts. These fixtures enhance the safety and architectural appeal of residential and commercial outdoor spaces including docks, decks, and perimeter fencing. High-efficiency solar technology paired with high-output LED arrays captures energy during daylight hours and delivers an automatic, uniform glow throughout the night without the need for traditional electrical wiring.
Construction uses industrial-grade, weather-resistant materials that hold a sleek, modern appearance even under prolonged UV exposure and harsh maritime conditions. Each unit includes a specialized adapter to accommodate the 3.5 inch by 3.5 inch actual dimensions of a nominal 4x4 wood post, supporting a secure, precise fit. Because the units operate independently from the power grid, they offer a sustainable, maintenance-free alternative to low-voltage lighting systems and install in minutes without trenching or transformers.
Dock Posts
Standard 4x4 wood posts on residential and commercial docks.
Deck Railings
Wood railing uprights with standard 3.5 inch profiles.
Perimeter Fencing
Property line and yard fences built on wood 4x4 posts.
An included adapter bridges the cap to the 3.5 inch actual post dimension for a flush, finished fit.
Included Adapter
3.5" actual fit
Solar Powered
No wiring required
Dusk to Dawn
Automatic activation
High Output LED
Bright, uniform glow
Weather Sealed
UV and moisture rated
Replaceable Battery
User-swap NiMH cell
Every fixture in this collection is precision-matched to the nominal 4x4 wood post profile via the included adapter, delivering a seamless architectural fit on docks, decks, railings, and fence systems. High-output LEDs paired with user-replaceable nickel metal hydride cells keep walkways and railings safely illuminated from dusk until dawn, regardless of seasonal sunlight variations.
Whether utilized for functional path marking on a dock or as decorative accents for a home deck, these Ultra Bright Tech post caps represent a robust, efficient investment in off-grid outdoor lighting.