... room,reading room Productive process Parts of the lamp Introduction of companyHangzhou Linan Haike Electronic co.,Ltd ... exporting from 2010.Our main products are half spiral lamp,full spiral lamp.lotus lamp,2u,3u,CFL tube ,PCB ballast,etc. ... two different factories,one is for energy saving lamp,other is for PCB .The characteristics of HK ... design and seri number before production . full spiral bulbs