"Calumping" or "through" voltage is a measure of how large a voltage spike can be transferred to your device. Normally this is 120 volts without a peak. The purpose of a surge protector is to prevent voltage spikes well in excess of this value from reaching your equipment. The company does not specify the tension of the restriction/passage and has not yet responded to repeated questions about it. I returned an item that is also not UL certified.
Extender Xiaomi Mi Power Strip 6 CXB6-1QM NRB4025CN, 6 outlets, 10A / 2500 W white 1.8 m
27 Review
Xiaomi Power Strip Surge Protector 3 Sockets 3 USB Black
26 Review
Extender Xiaomi Mi Power Strip 3, XMCXB01QM, 3 sockets, 10A / 2500 W black 1.8 m
20 Review
4 Outlet Power Strip with 3 USB Charger Ports and 5ft Braided Cord π‘ - Flat Plug, Wall Mountable Desktop Charging Station for Home, Office, and Cruise Ship use.
12 Review
Southwire 34930 Surge Guard 30A: Full Protection Portable with LCD Display - Superior Safety in Sleek Black Design
12 Review
Allocacoc PowerCube ExtendedUSB, 4 Outlets, 2 USB Ports, 5 ft Cable, Mounting Dock, Surge Protection, Childproof Sockets, ETL Certified - Blue
12 Review
BESTTEN Wall Outlet USB Charger: Surge Protector with LED Night Light, 4 USB Ports, 6 AC Outlets - ETL Listed, White
12 Review
π©οΈ APC Ethernet Surge Protector for 10/100/1000 Base-T Ethernet lines with ProtectNet (PNET1GB)
11 Review