Brighter-24 upgraded powerful big LEDs. There are 2 independent switches. Black one control surrounding 20 pieces light. White one control centre 4 pieces lights. Each LED has a separate reflector to enhance light and enlarge light coverage area.

Put the solar panel face the sun to charge power, 6 hours' charging at daytime, 8 hours' working time at night.The light will not light up automatically in the evening, you need to turn on the switch to light up if you need it.This solar panel acts like a charger.

Dimension: Diameter of Product is 7.87 inches(20cm). Fit for most umbrellas with a 1.3 inches(3.3cm) to 2 inches(5cm) diameter pole.

Accessory part: 1piece solar panel. 3 pieces Ni-Mh AA rechargeable battery. 1300mA 1.2V. (Attention: This item works with only 3AA Batteries, no need of 4, so we only installed 3 battery slots with spring.)

Top quality thick black ABS shell. Easy Click System. No tools or cords are required. Easy to clamp to your umbrella with the built-in auto adjustable strong clamp.