Electronic Transformers

Electronic transformers used in the Ambiance® LX Lighting System, and some applications within the RX Lighting System, utilize electronic components to step down the voltage from 120 volts (line voltage) to 12 volts. Unlike magnetic transformers where the low voltage output is 12 or 12.6 volts, the electronic transformer's output is actually 11.5 volts. Since the output starts at a lower voltage, this makes it more susceptible to voltage drop. For this reason electronic transformers should not be considered for use in distant remote applications.

For proper operation of an electronic transformer, it should be loaded within the described range:

• 60 watt transformers should be loaded between 15 and 60 watts
• 150 watt transformers should be loaded between 60 and 150 watts

If the load does not fall within the specified range, the transformer might either cause the lamps to flicker, or not function at all.

Since the electronic transformers operate at a higher frequency (22,000 Hz) than a voltmeter, multi-meter or amp-meter (which operate around 15,000 Hz), measuring the output voltage of the electronic transformer using any standard voltage meter will not be accurate. The best way to test an electronic transformer to determine if it is working properly or at all is to apply a load (or lamps) that fall within the specified wattage range. Simply put, if the lamps light, the transformer works.

Electronic transformers come either in a "hard-wire" version for the electrical contractor, or a "plug-in" (supplied with a cord and plug) version for the "do-it-yourselfer." Presently, the largest electronic transformer has a single output of 150 watts. For disk lights, Sea Gull Lighting offers an additional dual output, 120 watt transformer (two 60 watt transformers) with a special plug assembly for easy installation. A hardwire version of this transformer is also available but without the special plug assembly. Additionally, an "in-line" electronic transformer (150 watt capacity) is available for use with the LX Lighting System where wiring has been previously stubbed out for another fixture such as fluorescent undercabinet lighting.

Electronic transformers, as with any electronic component, may cause Radio Frequency Interference (RFI). RFI can cause static on a radio, television, or computer. Most electronic transformers do have built-in filters to reduce or eliminate RFI, but there are cases where interference is still present. If this should happen, first try to rotate the position of the transformer, similar to adjusting the antenna of a television, to get better reception. If all efforts fail, and as a last resort, consider switching to a magnetic transformer which does not cause RFI.