Features: Auto turn on and off: This solar stair light, in a modern technology, it turns on automatically at night and turns out automatically in the morning. Quick Charge: As it only takes 4.5 hours to fully charge, its short charging time is perfect for those short winter. Energy Power Saving: The solar step light Include a 800Mah 1.2V AAA Ni-MH rechargeable battery for up to 9 hours of illumination on a full charge. Zero electricity bill for the whole year. Waterproof Heatproof: IP55 waterproof and heatproof, solar powered lights, suitable for most kinds of weathers. Easy Installation: Solar lights powered by sunlight. No wiring required, simply screw it onto the surface (Screws included).