Solar-powered Charging: Our 12-pack driveway lights feature solar panels, so they can automatically be charged during the day and glow at night or in bad weather. It can work for 40 hours after a one-day charge and more than 80 hours after being fully charged. Sturdy Cast Aluminum Shell: The shell of the dock lights is made of thick cast aluminum, solid enough to withstand up to 99208 lbs/45 tons of pressure. With IP68 waterproof and dust-proof against any terrible weather, it is rust-proof and can work in temperatures of -20 to 70 for long-term use. Super Bright LED Light: Light intensity: 400-500Lux. Each solar driveway light is equipped with 6 PCs 0.2' high-brightness white LED lights, illuminating the space within a radius of 875 yards. Built-in 600mAH large storage battery ensures enough working time. Easy to Install: The solar dock lights can be quickly installed on the ground to absorb the sunlight directly, and no need for a power cord