What is track lighting?
Track lighting is a series of light fixtures positioned on a rail, or track, for lack of wiring, easy repositioning and/or aesthetics. The track can be attached to walls or ceiling. The track is always powered somehow, and in turn powers the fixtures.
What systems are out there?
Many track systems have similar fixtures, but the core difference lies in the design of the track and how it is powered.
The majority of the older systems power the track with line voltage (120V in U.S.), which is then converted into low voltage within the fixture itself. This results in a bulkier, less aesthetically pleasing system because a transformer is needed on every fixture. These systems are also forced to run on a straight, rigid track. Halo, Lightolier and Juno are the 3 most common manufacturers for this type. The advantage of these track systems is that once you pick a manufacturer, it is standardized and you can buy parts and fixtures from a huge variety of retailers. They do not sell directly.
The newer systems use one transformer and distribute low voltage current through the track. This makes for a sleeker-looking system, both because the track can be curved and because the fixtures do not need a built-in transformer. Low voltage also makes it safer in some environments because there is no risk of electric shock. Typically, these systems have a track between 6 and 12 feet long which can be bent. The transformer can be mounted either on the ceiling or in the wall with a power feed to the track, or can be positioned along the run of the track, with the track running through it. Our Flex II systems are in this track lighting category.
Another type of system which has been very popular over the years is cable track lighting. The track consists of two cables running parallel to one another. Fixtures are supported and powered by placing them between these two cables. Our "Star" systems are of this type. Typically, the track is run wall-to-wall and is no more than 20ft long. For longer runs, horizontal supports can be used to support the track along the way and prevent it from sagging. Variety of other hardware is available for ceiling mounting and making turns in the track.
What types of bulbs are out there?
Since high-voltage fixtures are rare (they are more fragile, less energy efficient and provide poorer light quality than low-voltage), we will not discuss them in this guide.
Low-voltage halogen bulbs differ mainly in shape, brightness and beam angles.
The shape you need depends on the fixture, so often the choice is limited. The most common in track lighting are MR-16, MR-11, Bi-pin and AR-111.
Brightness can usually be determined by the wattage of the bulb, although not in all cases. One of such cases is the 35Watt PHILIPS Advantage IR halogen bulb we carry. Its brightness is equivalent to that of a 50Watt standard halogen, but with a 5000 hour average rated life, and considerable energy savings.
The beam angle is a measure, in degrees, of how wide the beam from the bulb is. Larger angles are usually used for ambient light, whereas narrower angles (usually 25D and below) are used for spotlight applications.
Remember that bulbs are critical when designing with lighting, and getting high-quality bulbs will be an energy-saving investment and will have a positive effect on the atmosphere created by your lighting.
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