1000mAh High-Capacity Battery for All-Night Illumination: Tired of lights dimming in the middle of the night? This solar post cap light features a high-capacity 1000mAh battery—offering 66% more runtime than standard 600mAh models—to ensure 10–12 hours of bright, continuous light from dusk to dawn, even during short winter days or overcast weather. Large Design for Expansive Ambient Lighting: With a larger, taller profile, the light disperses over a wider area, casting a soft glow that illuminates more space around your deck or porch posts while avoiding harsh glare. Dual Lighting Modes & Automatic Sensing: Choose between two modes to create either a modern or cozy atmosphere; a smart sensor automatically turns the light on at dusk and off at dawn for hands-free, energy-efficient operation. IP64 Weather Resistance & Tool-Free Installation: Rated IP64 for weather resistance, it withstands rain, snow, and dust. It fits 4x4, 5x5, and 6x6-inch wood or vinyl posts; all necessary screws are included for quick, wire-free installation. Weight: 12.63 lbs.