Superior Solar Energy EfficiencySolar inground lights have built-in 600mAh batteries; each light has 8 LEDs. The light can provide illumination at night for about 8 hours after fully charged 6-8 hours of solar power during the day. With Light SensorThe deck lights will automatically turn on when it is goes black. Just be sure to place them where sunlight can shine through. So they can be perfectly charged during the day and work well at night. IP65 waterproof and anti-pressure designWith IP65 waterproof and high-strength ABS design, the solar ground lights can work normally , regardless of the weather, whether it's raining or snowing. Easy to install and useTwo installation methods: each lamp has two rivets and two brackets, so you can choose one way install them wherever you want. Wide range of uses, you can decorate your gardens, parks, streets, lawns, corridors, etc., to create a beautiful scene at night. Please be sure to turn ON the switches before installing the solar lights. Energy SavingSolar garden lights use certified 600mAh batteries with larger capacity. Compared with NiCd batteries, our batteries are more environmentally friendly and energy efficient. Upgraded 600mAh NiMH battery ensures up to 8-10 hours long working time and stable performance.