Features: CE certification for safe use. With highest lumen in market! Each LED with separate reflector to enhance light and enlarge light coverage area. Top-quality Black thicker ABS shell. Better than other cheap umbrella lights with thin ABS shells which have been damaged easily. Built-in auto adjustable strong clamp. It can avoid the light falling down. More stable and safer! 3 Switches: Outer 20 LED bulbs on/off Inter 4 LED bulbs on/off Open the light for easy mounting or removal. Fit for most umbrella with 1-1/8" to 2 inches diameter pole. Require 3 AA batteries (Not included) Specifications: Powerful Lumen: 12,000 lux LED Lifetime: 50,000 hours Light Size: 7-7/8" x 7-7/8" x 1-7/8" Package Contents: 1x 24 LEDs Umbrella Light