Features: Three lighting modes design, one press for Low brightness (Inner 4 LED bulbs), two press for Middle brightness (Outer 24 LED bulbs), again for High brightness (All 28 LED bulbs). Powered by 4pcs AA batteries, no more messy cord, very easy to use and install. High quality LED bulbs provide a long service life, up to 100,000 hours, you can rest assured to use for a long time. Fit for umbrella with 2.5~4.5cm diameter pole. Built with two hooks, so you can also hang it on anywhere you need. Suitable for outdoor camping, working at night, also can function as a household emergency light, reading lamp and more. Specifications: Condition: 100% New Material: ABS Color: Black, Silver(Optional) Bead Type: LED Bead Quantity: 24+4pcs Maximum Luminous Flux: 100lm LED Lifetime: 100,000 hours Battery: 4pcs AA Batteries(not included) Fit for: umbrella with 2.5~4.5cm diameter pole Diameter: approx. 16cm / 6.30inch Thickness: approx. 2.3cm / 0.91inch Weight: approx. 205g Package Included: 1 x Umbrella LED Light(Battery is not included) Note: Please allow 0-2cm error due to manual measurement. Thanks for your understanding.