Lamp: This umbrella lamp is portable and practical, very bright, suitable for outdoor activities at night, can better meet your needs.3 brightness modes: 28 bright LED bulbs, 8 LED low light mode, 20 LED bright mode, 28 LED super bright mode. you can adjust the brightness according to the occasions and needs.Built-in rechargeable battery: Recharge with USB, very convenient, it can be connected to power bank, laptop, power adapter. After fully charged in 8 hours, the lighting will be 18 hours in super bright mode and 54 hours in low light mode (adapter is not included).Easy to install: It is easy to clip on the umbrella without borrowing extra tools. The elastic clip is adjustable, suitable for umbrella handle diameter 2-5cm, suitable for most umbrellas.Widely Used: This umbrella lamp is more flexible and portable than the old version, it is suitable for gardens, beaches, camping, picnic barbecues, card games or chatting with family or friends on evening in the yard.