performance. efficiency. reliability. 

The GT Cooler was brought to commercialization in 2005. The GT has been used successfully in applications such as High Temperature Superconductivity (HTS) filters, high altitude balloons, refrigeration, germanium detectors, IR detectors, radio telescopes, laser diode cooling, and research among others. We believe the customer will agree that the CryoTel® GT is the smallest 16W @77K cooler available at an attractive price point with a Mean Time to Failure of over 200,000 hours. The GT currently utilizes the Generation 2 controller.

CryoTel GTLT: Sunpower’s Sub-30K Cryocooler

Sunpower now offers a sub-30K version of the GT called the CryoTel GTLT.  Sunpower is commercializing the GTLT to address applications that require lower base temperature, or additional cooling around 30-40K. Its physical envelope is identical to the GT but its design optimizes materials and regenerator structure to increase low-end performance. These changes now offer a no-load temperature of 28 K or lower, with ~1 W of cooling at 30 K and ~3 W of cooling at 35 K.  See a comparative plot of the GTLT performance compared to a standard GT below.