Package Includes 3 Pieces - momentary toggle switch 1/4 mount mini toggle switch (ON)-OFF-(ON) , momentary toggle switch 2A/250VAC 5A/125VAC specification of the mini toggle switch: Contact Resistance ?0.01? Voltage-resisting AC1500V(50Hz)/min Insulation Resistance ?1000M? Environmental temperature -40°C+85°C Working Life >10000 Relative Humidity 98%(40)°C