Outsunny Folding Infrared Patio Umbrella Heater - Black Attaches to any standard patio table umbrella pole for universal use When all three heaters are turned on a 30ft range of warmth provides ample heat coverage Three heat settings to choose from (500W, 1000W and 1500W) for a variety of heating options All three lights are adjustable from a vertical angle (0-90 degrees) for storage Silent operation with no harmful UV rays or toxic emissions