Built-in Light Sensor: Built in light sensor, automatically turn on at night and in the dark. The energy conversion rate can be up to 14%. Adjustable: The light heads are 90 degrees adjustable and the stand is 180 degrees adjustable, the lights and solar panel can be moved up and down as you need, AC or DC, energy saving and environmentally friendly. The first mode is automatic color changing; short press the switch for 1 second for fixed color function. Waterproof and Durable: IP68 dustproof and scratch resistant, made of high quality stainless steel. These solar lights can withstand all weather conditions: rain, snow, which provides a longer lifespan.