Rotpfeil QuickFix Extension Cable Black 10 m. In the past, each light element required its own socket, but with the patented QuickFix™ system, this is a thing of the past: This connection system allows multiple marked 230 Volt products to be easily connected together - this also applies to 36 Volt low-voltage products. Individually quality-tested, the QuickFix™ complies with protection class IP67 – splashes of water pose no risk to functionality. Installation: 230 Volt LED products should always be installed under power. Only in this way can the polarity be checked. All new products feature modified plugs that prevent accidental reversal of polarity.