Cuktech has meaning behind it, it's not just an odd name.
The "CUK" (/tʃuk/) in CUKTECH is the recognition of the Čuk circuit, which is a special type of DC-DC circuit topology proposed by Slobodan Čuk in 1976. The CUK circuit's high efficiency, low ripple, and flexibility not only align with the modern demand for efficient energy utilization.
Cuktech has announced the 15 Ultra 20,000 mAh power bank, which is now on sale in the US and UK. The new power bank offers three ports, with a maximum of 140 W or triple port output of 210 W. It also comes with a smart TFT color display and supports a wide range of fast charging protocols.