Smart Garden 365 lights boast innovative auto adjusting technology that adapts brightness to prolong light emission depending on the weather. Designed to work all year round, even on a cloudy day. On a sunny day, the lights will operate at full brightness. On a cloudier day the lights will work at a lower brightness to conserve energy. Automatically adjusts brightness according to the amount of daylight received during the day, to provide light all year round. They are perfect for entrances, patios, garages and sheds 2 Lights included