... , Electric, and Heat 1, Bright back-lit display with interactive touch screen;2, Supports Gas, Oil, Electric, and Heat Pump Systems, 3 ... power failures and automatically updates to daylight savings.6, Universal Dual-Powered choice of battery-powered or hardwired with battery back ... ~90%13,Dimension:152x114x29.8mm (H x W x D) Touch Screen Thermostat