Abstract: A helium or air filled latex balloon includes a lamp in its interior connected to an external power source by an electrically conductive cable passing through the balloon inlet port and neck. The cable comprises wires encapsulated with Kynar, a polyvinylidene fluoride, a semi-crystalline thermoplastic polymer that exhibits tacky surfaces and excellent properties for providing a weatherproof tight seal between the wire cable and the balloon. The neck is sealed with curling ribbon, by knotting or clips and the like. Air filled balloons may be supported by a stiff music wire or straw and helium filled balloons may be tethered by the cable. A power source illuminates the lamp via the cable.