Umbrella lamp with improved stylish design with 28 LEDs and adjustable brightness, which is much brighter and perfect for outdoor night activities. Two selected brightness levels (8 or 28 LED lights), 28 large super bright LEDs with an output of 400 lumens in bright light. 2 built-in rechargeable batteries (3.7V, 4400mAh), more environmentally friendly and energy efficient. With a matched USB cable, it can be fully charged in 8 hours, and the light will be on for over 18 hours in bright light and 54 hours in low light. Cordless design with built-in flexible self-adjusting clip, its easy to attach to your umbrella, suitable for most patio umbrellas. Upgraded version is applicable for pole size from 0.8 inch to 2 inch in diameter, face down mounted for direct illumination serving as umbrella pole light, perfect for night time recreation etc. Parasol light 28 LED Umbrella Lamp fits pole sizes from 2cm to 5.2cm in diameter, fits most umbrellas and is very easy to install. Easy Install Parasol luminous its installation can be completed in just 3 steps Compared with ordinary products, it is very convenient to use. USB Recharge Wireless lamp with built-in rechargeable battery, no external battery is required. Using USB charging, it is very convenient to use. (Precautions adapter is not included in the product package)