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Sometimes you need to splice or extend a low-voltage run where the quick-connect harness won't reach. A twist-and-tape splice invites corrosion and flicker inside a damp wall — exactly what you don't want behind finished tile. This heat-shrink solder butt connector does it right: slip the wires in, apply heat, and the solder flows into the joint while the sleeve shrinks down to seal it.
The result is a solid, moisture-resistant connection in a single step, ideal for extending or joining 24V low-voltage wiring on an Illuminiche system.
Pro tip: Use a heat gun rather than an open flame, and let the solder fully flow before the sleeve finishes shrinking — then support the joint so it cools straight for the strongest, cleanest connection.