oslo switch sources and manufactures manually operated lighted pushbutton, rocker and keylock switches that are ul, csa and vde recognized. featuring a 24-hour sample program, our emphasis is on quick delivery of catalog standard and custom components, a 24-hour sample program, outstanding service, performance and price. we manufacture all our products in the u.s.a and offer high electrical current ratings - up to 20 amp, 250 vac and 1 hp.