Name: USB Lamp Mode: L-18 Brief Introduction:-Gentle ray, bright, without frequency change, benefit from preventing eyesight.-By using lowest work voltages: 5V safety &reliability high efficiency, saving energy.-It makes 20 times long life than normal daylight by placing exceed age’s cold light tube -The lamp which not only can form a complete set with USB computer socket, but also can directly set with city power supply. -Connect lampshade &lamp base in soft tube.-Economic, beauty. Convenience on easy handle light directionSpecification & Size: the length of tube17 cm, head of length20cmUnit weight: 134.8gUnit packing weight: 197.4g