The two pack of Gama Sonic GS-139 Premier solar garden lights is the perfect set of lights for illuminating paths or gardens. Installation is as simple as staking the lights where you want them, and that's it--no electrical wiring needed. The cast-aluminum stakes are nearly a foot tall when fully inserted into the ground, ensuring good visibility of the lights on your path or in your garden. At dusk, each Premier light's warm-white LED will turn on at a brightness of 50 lumens and stay lit for eight hours on a full solar charge. These Premier garden lights are built to last from rust-resistant, powder-coated cast-aluminum. Their monocrystalline silicon solar panels are protected by weather-resistant, cleanable tempered glass that help ensure long-lasting reliability. The replaceable, plugged Lithium Ion battery packs are good for about 1,000 charges. Recharging speed varies based on weather conditions, but generally it takes about six hours of sunlight on the solar panels to achieve a full solar charge of the battery packs after they've been completely run down.