The inverters reliably and precisely convert 12 V DC voltage into true sine-wave AC voltage of 230 V/50 Hz at the output. Controlled by a digital signal processor. Standard equipment includes a 230 V protective contact socket suitable for the plug types C (Euro plug) and F (Schuko plug), as well as a 5 V USB connection The inverters comply with the legal regulations of the ECE regulation and thus have the E-certification. The devices have extensive protective circuits to protect against e.g. reverse polarity, excess input voltage and short circuit and output overloads. There is also an excess temperature switch-off feature. They are equipped with an adjustable, dynamic deep discharge protection.