Lightstat Inc manufactures and sells innovative energy-saving thermostats, lighting controls, and load control modules. We help our customers to conserve energy dollars and lower maintenance costs while preserving comfort.

All Lightstat products are designed and assembled at our UL listed manufacturing facility in Barkhamsted, Connecticut. To ensure first-rate quality and reliability, each unit is individually calibrated and rigorously tested. We sell direct to our customers and provide friendly knowledgeable technical support toll-free for the life of the product.

Managers of small and medium box retail and light commercial businesses turn to Lightstat's Light-Sensing Setback Thermostats for a simple and reliable way to save 10% to 15% in energy costs through automatic nighttime setback and built-in heating and cooling temperature limits. Learn more...

Retail chains seeking centralized control of heating and cooling at each store location can depend on Lightstat's Wireless Internet Thermostat or i-stat. The i-stat incorporates one-way paging receivers to accept 7-day programs wirelessly dispatched from the Internet. Learn more...

Dramatically reduce maintenance costs and service calls with Lightstat's new Two-Way Ethernet Thermostat or e-stat. The e-stat reports back system temperatures, status, and other useful data in real time. Easily monitor performance, troubleshoot problems, and update programs and settings from any computer via your wide-area or third-party network. Learn more...

For simple comprehensive control of interior and exterior store lighting, Lightstat offers the Automatic Lighting Control. Light sensors, motion sensors and timers reduce manual controls to a single Open/Closed push button, save energy by keeping unnecessary lights off, and ensure employees never arrive or leave in complete darkness. Learn more...

Optimize overhead dollars by controlling lighting, heating and cooling in one convenient package with the Lightstat Integrated Control System. Our Setback Thermostats and Automatic Lighting Control seamlessly work together to maximize your energy savings. Learn more...

Gather your electrical distribution, switch gear, HVAC and security controls together in a single efficiently designed cabinet. Custom-designed for your application, the Lightstat Integrated Utility Control is easy to install, easy to use, and easy to maintain. Learn more...

Colleges, military bases, and apartment building managers find Lightstat Light-Sensing TG Thermostats the ideal solution for automatically reducing heating and cooling costs while keeping residents comfortable. Learn more...

Utility companies can reduce demand at peak times with Lightstat's RTPstat Thermostat and Virtual Gateway Programmable Load Control Modules. Shed load in seconds by altering air conditioning setpoint or turning off or cycling air conditioning, water heaters, pool pumps, or other common residential loads. Learn more...