WAC track lighting is an excellent choice when you areconsidering adding track lighting in your home. They offer threedifferent standard types of tracks for the lighting, and they areall compatible with other track lighting systems. This means youcan use WAC track lighting products to add to already existingsystems without having to worry about compatibility.The three tracks look almost identical to the untrained eye, thedifference is how the pieces fit together and how they can beinterchanged with existing track lighting. the duorail system isthe smallest two track lighting system available right now.In addition to the standard tracks, there are many differentaccessories and lamp styles that can be used with the systems.There are LED options, incandescent options and more energyefficient