Kichler 4-in x 4-in 200-Lumen 3-Watt Olde Bronze Low Voltage Hardwired LED Outdoor Post Cap Light (3000 K) in the Deck Lights department at Lowes.com
NEBO Low Voltage LED Post Light | Elegant Deck Lighting Solution
Aurora Triton Low Voltage LED Post Cap | Deck Expressions
LMT Mercer Group, Inc America's Fence Store 5" x 5" White Cape May – Downward Low Voltage LED Light Post Cap for Vinyl Fences – Six Pack - - Amazon.com
Amazon.com: GKOLED Low Voltage Pyramid Post Cap Light, 9-15V AC/DC 3W IP65 Outdoor Deck Lighting, 2700K LED Fence Cap Light for 3.5x3.5 4x4 Wood or Vinyl Posts, Solid Die-cast Aluminum Housing, Black :