Solar Ice Cube LightsSolar ice cube lights make full use of solar power,converting solar energy into electricity.In the bottom of solar ice cube light,There's a lithium battery inside.Solar brick must be placed outdoor under direct sunlight for 10 hours at least.LONG WORKING TIMESolar brick lights work All Year Round, Up To 8 Hours Illumination Each Night. Durable plastic base to prevent erosion and withstand diverse weather conditions and water resistant.as a buried lights, the surface is so hard solar ice cube lights can be use for more than an year.THE LIGHT SOURCE LEDSwhich have a long service life and do not need to be replaced; the lights are automatically turned off during the day, automatically charged, and automatically turned on at night.AUTOMATIC LIGHT SENSORThe automatic light sensor will turn on the paver at dusk and provide light until night. When not in use, the manual on/off switch located on the brick base helps to save energy. Put them in the driveway, carport or sidewalk in full sunlight and let the daylight do all the work.