4-Pack Solar Black Post Deck Fence Cap Lights for 4" X 4" Wood Post With White LEDs and Vertical-lined Clear Lens-GREEN NATURAL SOLAR LEDs color: 5 Bright White LEDs Battery: 1 x Pre-installed Rechargeable 400mAh Lithium-Ion Battery Material: Premium Heat-Resistant Plastic Automatic on at dusk, off at dawn (on/off manual override switch) Operating Time: Up to 8 hours (depending on weather, temperature, regions and sunlight intensity available)