Fits a wider range of 4x4 posts with the included adapter: Now includes a 3.5" x 3.5" adapter to accommodate standard nominal 4x4 wood posts; also fits true 4" x 4" vinyl posts. Suitable for gardens, patios, fences, decks, courtyards, mailboxes, and more. 3 modes and 2 brightness levels: Choose from cool white, warm white, or neutral white, with two brightness settings (50% and 100%) for each color. Multiple lighting modes allow you to create the perfect look and customize your outdoor decor—ideal for relaxing evenings, gatherings, pathways, or backyard ambiance. Solar-powered with automatic on/off: Charges in direct sunlight during the day and lights up automatically at night. Bring a warm glow to your outdoor space with no wiring or extra energy costs. Eco-friendly and easy to use. Waterproof and durable: Designed to withstand harsh conditions, these 4x4 solar cap lights are fully waterproof and built for outdoor use. They provide reliable, continuous illumination in rain, snow, or sunshine. Stylish outdoor decor and easy installation: Add a warm glow to fence, deck, yard, and mailbox posts for a beautiful nighttime look. Simply measure your post to see if the 3.5" x 3.5" adapter is needed, secure the base, select your mode, and twist the light into place. Weight: 6.18 lbs.