Long quantity is good, long quantity of small lamp quality is good, using 21 imported led lamp beads, life of up to 100,000 hours, no strobe, no radiation, eye protection. Built-in 6000 mah lithium battery, when the 4 prompt lights are all on and do not flash fully charged. Is a wireless charging desk lamp, adjustable light, the key is the lamp tube is large, the base is clumsy.