Universal input voltage range. Constant output voltage. Connection: Cable with end sleeves (length approx. 300 mm). Polarity identifiers, secondary + red / - black. Metal casing, encapsulated. Nominal life-time up to 50,000 h (at Ta 50 °C with a failure rate max. 0.2 % per 1,000 h). 5-year guarantee. Suitable for emergency installations according to EN 50172.