solar light on fence

Two main styles are common: decorative solar post‑cap lights that mount on fence or deck posts, and motion‑activated solar spotlights or floodlights with adjustable heads for security and area lighting.

Most solar post‑cap lights are made for square posts. Examples in these listings include fits around 3.5"–3.75", options up to 5.5"×5.5", and some multi‑packs that say they fit posts under 6". Check the specific product dimensions to confirm compatibility with your post.

Post‑cap fence lights commonly offer warm and cool white settings (examples include 3000K and 5000K). Other solar fixtures list single color temperatures such as 3000K or 6500K, and some security lights provide multiple selectable white‑tone options.

Attachment methods vary: some post caps mount with included screws, while others use a twist‑on fit. Listings commonly specify fit sizes for square posts (for example, fits up to 3.75"×3.75" or up to 5.5"×5.5").

These solar fixtures are solar‑powered with built‑in rechargeable lithium cells. Battery types listed include 18650 and 14500 lithium‑ion cells and LiFePO4 rechargeable lithium batteries.

Most post‑cap lights charge by day and operate from dusk to dawn. Some listings give specific runtimes (for example, up to about 8 hours), while others simply state dusk‑to‑dawn operation without a precise hour count.