1. Brightness modes: Press once to light up 4 LED indicators (low intensity), press twice to light up 20 indicators (bright), press three times to light up 4 indicators (super bright). It meets your different brightness needs in various occasions. 2. Available power sources: - 1. Requires 4 AA batteries (not included). The battery pack's working time is approximately 10 hours (with 24 LEDs) to 24 hours (with 4 LEDs), depending on the batteries you use. - 2. USB - powered. The product comes with a 150 - cm long USB power cord and can be powered by an external power source, such as a power adapter. 3. The service life of the LED lights exceeds 50,000 hours. 4. Convenience: No additional tools are required. It has a powerful self - adjustable clip that can be easily fixed on an umbrella. It can also be hung anywhere with two hooks and is suitable for pole - type installation, fitting a size of up to 4.5 cm. 5. Excellent energy - saving: It uses 24 LED lights, which are energy - saving and environmentally friendly. The 3 brightness modes can meet your different brightness needs in different occasions. 6. Wide application: It is suitable for camping, barbecuing, playing card games, or lying on a lounge chair with family or friends at night. Install it facing down for direct lighting or facing up for indirect lighting. 7. Colors: Warm light for balconies and swimming pools. When there is sunlight or a fixed light source, you can continue to have dinner, read books, chat with friends, or play with family. 8. Our umbrella light only requires 4 AA batteries (not included) or a power source (the product includes a 150 - cm long USB power cord), and you can take it with you anywhere you want. 9. To make it easier and more enjoyable, we have designed 3 lighting modes (low, normal, and high) and 2 colored lights (warm and white) so that you can always find the right brightness for yourself.