The Online Modern Rechargeable Led Cordless Table Lamp (height Adjustable) Blue is a new and revolutionary cordless table lamp. This lamp is designed for ease of use and convenience. It is rechargeable meaning that it never needs to be plugged in, making it perfect for small apartments, dorms or anywhere else where having tangled wires or cords is less than ideal. The lamp has a built in battery, and a charging port located on the bottom of the unit. This allows for the ease of charging with any USB power source (sold separately). You can get about 7-10 hours of light with a single charge, and when the light begins to dim you can plug in for a quick re-charge. The height of the lamp is adjustable, so it can be used for reading, studying, or any other task that requires a light to be at the perfect height. The light is also bright and adjustable, so you can easily adjust the brightness for different tasks. The lamp also features a built-in timer that you can set to turn off after a specified amount of time. The lamp is also very durable and long lasting. The body is made of a sturdy plastic that can hold up to heavy use. The LED bulbs are designed to last up to 25,000 hours and use significantly less energy than traditional lighting. If you're looking for a convenient and efficient lighting solution, the Online Modern Rechargeable Led Cordless Table Lamp (height Adjustable) Blue is a great option. It is perfect for small spaces and can be adjusted to fit your needs.