... . Main Function: 1,Three working speed for your choice:slow,middle & fast.2,delay ,shut down,timer ,Clock functions,smoke sensor ... of established: in 20002, Main products: Range hoods parts, Range hoods switch, LED lamp for range hoods, transformers for lamps.3,Experience: 10 ... years experience in spare parts of kitchen range hoods, led lamps ect.4, Quality management Standard: ISO ...