This item is a waterproof toggle switch which features single pole double throw (SPDT) type. It comes with 3-Pin terminals, On/Off/On 3 position and snap-in round rocker switch. It's easy and safe to mount the the rocker switch on the dashboard of vehicle or boat. It enjoys wide applications in car, motorcycle, boat, water dispenser, etc. Features -A SPDT switch button made of durable plastic with mechanical life for 10,000 cycles.- Waterproof design, protected against dust and low pressure water jets, strengthen the security.- Easy to install, fits into 3/4" (20mm) holes nicely, no tools are required.- Features a red button on the face of the rocker switch.- SPDT single pole double throw type.- I/O/II (on off on) signals are marked on the switch for precise indication.- Wide application. It can be applied as the switches for car, motorcycle, boat, etc. Specifications - Color: Black- Material: Plastic- Diameter: 3.2 x 2.2 x 2.2 cm/ 1.26 x 0.87 x 0.87 inch (L x W x H)- Poles: SPDT- Terminals: 3 Pins- Position: 3 Position ( On/Off/On)- Rated voltage and current: AC 250V, 6A- resistance: 50 M Ω- Insulation resistance: 100 M ΩPacking list: 1 x AC 6A/250V 3 Pin Round Rocker Toggle ON/OFF Waterproof SPDT Switch Button For Auto Car And Boat