For hot cathode quartz UV lamp, include preheat start uv lamp,instant uv lamp,high output uv lamp,ozone and free ozone uv lamp, high ozone uv lamp and compact uv lamp etc. And we could do many types shapes, like straight tube uv lamp,U shape uv lamp. In the hot cathode arc discharge, cathode current depend mainly on cathode surface coating electronic powder of thermionic emission provided, current, reach 600 ~ 700 ma. Cathode is hot, hence the name "hot cathode". And mainly use for air purify,water treatment system,water purify,and disinfect etc.