With decorative seeded glass these two pack solar garden lights are powered by the sun during the day and light up at night illuminating your yard and gardens. They are easy to install with no ground wiring needed. The lamp body is made of aluminum, while the lenses are made of glass making these lights durable and weather resistant. The problem with most solar lights is after a year of usage the batteries die and the lights are dead. These Lifetime Series Garden Lights batteries are covered by a lifetime guarantee battery replacement program.