Sierra MP78860 RotoSwitch Rotary Switch Unique ergonomic design, styling and performance Durable cam design for long life UV stabilized thermoplastic housing Knob acts as umbrella - Silicone lip seal mates with stalk Separate light modules optional Replaces toggle or rocker switches with minimal panel alterations Provides illumination w different colors providing immediate visual information of switch position Specifications Switch Function Off-On1-On2-On12 SPTT Rated 20 Amp 12v 12 hole size Ca