Application: Apply in A computer mouse, car mouse, automobile electronic products, communications equipment, products, test instrument, gas water heater, gas burner, small home appliance, oven, electric rice cooker, floating ball supporting equipment, equipment, automation, electric tools, . Operating temperature: -40 Celsius to 70 Celsius Rated voltage: AC 125V-250V Current rating: 5A Size: 20 x 10 x 6mm (L X W X H) PCB Terminals Circuit Board With Roller Lever Limit Working principle: 1.By external mechanical force transmission (by pins, buttons, levers, rollers, etc.) will be used to force action on a reed, 2.Producing reed instantaneous action when action shifted to the critical point, 3.so moving contact with the fixed contact spring at of the action point fast on or off. 4.When the force is removed on components, 5.Action reed reverse action force transmission reverse stroke 6.The action reaches a critical point reed, instantaneous reverse action. Feature: contact spacing is small,short stroke action,according to the power of small,fast- colour:black + red Material:PC+ metal Package Contents: 10 * -roller switches Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.