Usage Tips:For automotive, marine, boats, and much more applications Heavy Duty (50 amps) push-button momentary switch that is dust and moisture resistant and high quanlity Push-to-make = SPST Momentary A push-to-make switch returns to its normally open (off) position when you release the button, this is shown by the brackets around ON. This is the standard Horn / Ignition type switch. 12V DC, 50A, SPST (single pole, single throw) Contacts are pure copper for Length: 6.2cm Width: 2.8cm Voltage: 12V Colour: Black Material: Aluminum Alloy + Plastic Package Contents: 1 * Switch Push 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.