High-efficiency solar chargingSolar step lights outdoor equipped with monocrystalline silicon, the solar energy conversion rate up to 22%, high charging efficiency. Solar outdoor step lights help you to cut your energy bills easily. Note: Please fullycharge in direct sunlight before the first using. Waterproof and durableThe solar lights for steps made of ultrasonic welding technology no need screws, IP68 waterproof, good protection make sure a long lifespan. Powerful adhesive Based on powerful double-sided tape, solar stair lights outdoor can be strong and easy to stick on any smoothy surface, wireless, easy to install. 8 units high brightness LEDs8 units quality LEDs per solar step lights outdoor, with 360illumination, soft warm white light, solar deck step lights will decorate your yard without disturbing your neighbors. Automatic work modeThe solar stair lights are automatic, charging in sunlight, auto lighting up in darkness.