1.cold cathode fluorescent lighting CCFL UVA manicure lamp 2.Longlife. 3.high-efficiency 4.high light Diameter:8mmSize:42*132mmWave length:365nmSwitching frequency:200,000 timesLife:20000hApplications:Use for manicure lampSpecialty:Long life time,Good effect of nail polish solidifying,Without any harm to the human body,Pollution-free.