Product details

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4 in. x 4 in. Solar Post Cap Light with White LED

The Ultra Bright Solar Post Cap Light provides a professional lighting solution designed to enhance the safety and aesthetic appeal of any outdoor deck or railing system. This unit is specifically engineered to accommodate multiple post types including 4 inch by 4 inch vinyl posts and standard 4 inch by 4 inch wooden posts with an actual dimension of 3.5 inches by 3.5 inches using the included adapter. By utilizing high efficiency solar technology this light eliminates the logistical challenges and costs associated with traditional electrical wiring. A primary feature of this model is the patented magnet technology which enables users to cycle through 7 distinct brightness levels. By swiping the included magnet across the solar panel the lighting output can be adjusted to meet specific runtime requirements or seasonal environmental changes.

Construction of the Solar Post Cap Light focuses on long term durability in diverse climates. The housing is manufactured from advanced ASA UV resistant composite material to ensure the unit maintains its structural integrity and color under constant sun exposure. The internal electronics are fully waterproof with an IP68 rating providing reliable operation in both fresh water and salt water environments. The high power solar panel is protected by a tempered glass lamination which offers superior resistance to scratching and environmental degradation. The system is powered by user replaceable nickel metal hydride batteries which are included with the unit to facilitate immediate installation and long term maintenance.

Performance metrics for this model include an array of 12 ultra bright white LEDs that deliver a light output ranging from 5 to 35 lumens depending on the selected settings. The adjustable brightness feature allows for a flexible runtime between 10 and 140 hours ensuring consistent illumination even during periods of limited sunlight. It is important to note that this specific unit is not compatible with Trex posts. This solar post cap represents a robust and versatile choice for professional grade fence and railing illumination.


Post Type Actual Outer Diameter Measurement
Vinyl 4 in. x 4 in. Post 4.0 in. x 4.0 in.
Nominal 4 in. x 4 in. Wood Post 3.5 in. x 3.5 in. (with included adapter)
Aluminum 4 in. x 4 in. Post 4.0 in. x 4.0 in.
Steel 4 in. x 4 in. Post 4.0 in. x 4.0 in.


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