SHENZHEN SASWELL TECHNOLOGY INC. SASWELL CONTROLS (HONGKONG) LIMITED We are experienced professional controller manufacturer for 20 years. Our advantage: 1.Design,Development manufacture,all together. 2.100 production procedure,we take care of each step. 3.We have passed the VDE,SEMKO,CSTB,EU,BAC,ETL,UL certificate and factory audit. 4.Depend on 20 years R&D experience ,more than 30 senior experts and researching staff research,from structure mold design to software design,we are experienced and well organized. 5.Every SASWELL product pass 100% check and test.Each product pass prototype test, trial production test, trial marketing test.We guarantee that every batch order will maintain quality consistency.