... 20s.8,AuthenticationCE.9,Examination formQC.10,Degradation testing time/2hours.11,Product size/250*205* ... which full up shortages of old-style nail UV lamps, details as follow: 1. Friendly environmental ... , the ordinary tube-style nail UV lamps make use of UV tube which contains “mercury”. And “mercury ... , especially harm to human body. Lamp of UV tube also troubles to recycle, when it is ...