This Lux Light TL600 thermostat is a versatile device that can operate using either corded electric or battery power sources. The square-shaped thermostat is made of white plastic material and can be wall-mounted for convenience. It has a 2-wire wire configuration and operates on low voltage with a voltage rating of 24V. The Lux TL600 thermostat features an analog/mechanical control style, a single heat stage, and a night light feature. The thermostat is also programmable and has a thermostat shape of a square. This thermostat is an excellent choice for heating, cooling, and air conditioning systems. I ship items out EVERY DAY so EXPECT a QUICK delivery! Please feel free to ask any questions you may have I answer most questions instantly!