Patio Umbrella light, LONRIC 3 Level Dimmable Wireless 28 LEDs Lights with Adjustable Clamp Pole Mounted or Hung for Outdoor Patio Umbrella Lighting or Camping Tents (Silver) 3 Levels of Brightness for three modes, each time you press the black button, you change one mode Face down mounted for direct lighting, face up for indirect lighting, adjust height to control beam and intensity Batteries operated (not included),no tools required,without wires hanging from your umbrella Easy to clamp to your umbrella with the built-in auto adjustable strong clamp,also can be hung on with two hooks Can be umbrella light,camping tent light,temporary emergency light,reading light,prevent power outages