Newcomdigi Patio Umbrella Lights, 28 LED umbrella light 3 Level Dimming, Led Parasol Light, Lamp for Patio Umbrellas, Camping Tents and other Outdoor Use(Black) It has 3 level brightness, you can turn on 4, 24 or 28 LEDs. Suit your need for different brightness on different occasions. Energy-saving And Bright. With 28 energy-saving LED bulbs, can be used for 100000 hours. No need for extra tools, wires and electrical source. Convenient for you to carry and use. Fit different pole size from 35mm to 43mm in diameter. Perfect for outdoor camping, umbrella light in rainy night, reading and for temporary emergency. Using 4 AA batteries (not included) to support the lights. Can be easily purchased in common shops. Easy to carry and prepare for batteries backup.