Lighting fixtures and light sources come in a vast variety of styles and designs to suit any lighting layout: surface mounted (track, chandelier and pendant, ceiling, wall mounted) and recessed fixtures for low ceilings or to give a sleek look. Light sources include incandescent, halogen, led and xenon. For maximum energy efficiency and longest life (10 times longer than incandescent)use fluorescent whenever appropriate. Incandescent are not as energy efficient (4 to 5 times less) but renders color effectively so use for mostly accent lighting. Halogen,low voltage and xenon are other options; consult an online lighting designer for best usage of these particular light sources.