Features Specification: This thermal controller is small in size, lightweight, arc-free, reliable, long service life, less radio interference. Wide Application This thermal controller is widely used in fractional power motors, coils, household appliances, computer communications, fans, etc. Easy to Install: Comes with compact size and light weight also, easy installation can be quickly completed. Strong Function: The operating temperature of this thermal controller is -20℃ to 300℃. Rest assured to choose it! Fine Workmanship This thermal controller is well carved with M4 thread, with perfect sealing and sealing performance, please rest assured to use them. Specification: Item type: thermostat switch. Material: Copper. Thread Size: M4 Voltage: 250 V. Package list: 2 thermostat switches Package List 2 x Thermostat Switch