This is a re-usable gel filled waterproof connector for Collingwood’s outdoor parallel wired products. Containing a terminal block and gel, the connector is easy to wire and can be used multiple times when any alterations or products are added at a later date. Small, discreet and IP rated to 68 (1.3m), the JB4 is an ideal accessory to complete that professional installation.N.B. Min 6.5mm to Max 12mm cable(outside diameter)