Abstract: A lighting system has a base and at least one vertical support (trunk) that frictionally engages the base. The vertical support (trunk) has apertures around its circumference and its inner circumference is lined with longitudinal current carrying conductors. A low voltage transformer disposed within the base and electrically connected to a voltage supply contact in the base. The longitudinal current carrying conductors engage the voltage supply contact when the vertical support frictionally engages the base. Pairs of current carrying rods (branches) frictionally engage the vertical support (trunk) at the apertures and have voltage supply contacts that contact the longitudinal current carrying conductors. Ornaments having resilient clasps, with a pair of separately disposed electrical contacts on both sides of the clasp, frictionally engage the current carrying rods (branches) and electrically connect the current carrying rods to the electrical contacts and the ornament.

Abstract: An educational, decorative, illuminated block set is provided having a low voltage matrix form mounting apparatus for the blocks, so that the blocks can be selectively illuminated if placed in a pre-arranged order of alphabet symbol or number assigned to each of the blocks.

Abstract: A decorative lighting system having individual low voltage incandescent lights mountable upon removal limbs or conductive supports which are interconnected with stems or base supports containing low voltage buried conductors, together with a transformer for reducing electrical output to a low voltage range in a preferred embodiment. The stem or base support comprises a material of a low voltage high density conductive plastic, or a laminated metallic conductor.