This solar Sunbrella outdoor patio market umbrella is great for any outdoor backyard or patio space. The 103" diameter patio umbrella canopy is engineered to last with 100% solution-dyed 220g acrylic Sunbrella fabric. Solution-dyed means that the fibers the fabric is made from are dyed before being woven which results in a more long-lasting, fade-, and stain-resistant color. The 2,000-hour color fastness means that this fabric will not fade as quickly as others. The pole and ribs are made from rust-resistant, powder-coated aluminum while the fittings are stainless steel. Solar-operated LED light bars are located along each of the 8 ribs. When fully charged, the solar lights will run up to 3-4 hours. To turn them on, simply use the buttons located on the umbrella pole. There are 3 different sections, choose any section to light up, a combination of 2, or have all on at once. The solar panel is located on top of the umbrella that is charged via direct sunlight during daylight hours. To use the auto-tilting option simply open the umbrella all the way and keep cranking it until the desired tilt angle is reached.