Its a manufacturer of lampholders, wall switches w/o sockets, sockets w/o cables, welcome OEM.

Item: Wall switches w/o sockets
S/N Model Color  
101U yellow or white
102U yellow or white
104U yellow or white
106U yellow or white
106UB yellow or white
118 yellow
2118 yellow
112 yellow
115 yellow
119 yellow
311U yellow or white
312U yellow or white
314U yellow or white
316U yellow or white
804 yellow or white
805 yellow or white
806 yellow or white
807 yellow or white

Welcome OEM.