Universal control voltage 3-60VDC or 12-120VAC connects to Arduino Raspberry Pi PIC or other micro. Or connect directly to a 12V to 48VDC or even 120VAC circuitHigh voltage wiring and safety hazards are eliminatedA single input signal switches four outlets: one normally on one normally offOptical isolation relay hysteresis and de-bounce protection add safetyA large MOV clamps surges for clean 90-140VAC powerThe durable SPDT control relay is rated at 30/40A >400 000 operations at 12A or 2 million+ operations at 5AA 12A thermal safety circuit breaker switch prevents overloadsStandard 24" C-13 detachable cord included free cords up to 25' are optionalVersion 2 adds higher isolation voltage un-switched outlet and mounting tabsProfessionally built and tested. Not a kit. Be up and running in minutes