Upgraded Version: Newest 4 LED solar outdoor lights, they are brighter than other old 3 LED on the market. Higher Solar Efficiency up to 18% via Monocrystalline Silicon and give out a visible bright light illuminating stairs, paths, decks, gardens, lawns, etc. Solar Deck Lights: The change of angle makes the range of solar panel absorbing sunlight more reasonable and the illumination more scientific. Keep the switch at AUTO position, the light will automatically turns on at dusk and off at dawn. The working time can last 8-10 hours if fully charged. Solar Powered Lights: Solar step lights include upgraded monocrystalline silicon solar panel and a 600Mah Ni-MH replaceable battery. They can absorb more free power from any bright source and convert energy into electric energy to light your way. Soft cool white light is safer for you to walk at night. Easy installation: Fast and easy installation, no wiring required.Just screw the lights onto the surface by provided srew sets, or simply use the double side tape to stick it on flat surface. Waterproof: water resistant, withstanding rain, wind, snow, ice and wet conditions. Even on rainy days it can light your garden, yard, garage, driveways, front doors, backyards, walls, etc. (Please don't soak in the water).