12V AC Remote Magnetic Transformer – MR16, MR11 and Bipin lamps
Promus MR16, MR11 and Bipin LED lamps are designed to be powered by a 12 volt AC transformer.
In typical landscape lighting installations, a remote magnetic low voltage landscape transformer is recommended, such as the Hunza Wall Mount Transformer or Hunza Inground Transformer (the Hunza Inground Transformer is not UL Listed for use in the USA/CANADA).
These installations use parallel wiring - see the LED Wiring System Diagram.
Voltage drop calculations need to be carefully monitored to ensure the right combination of transformer wattage and cable gauge is selected to best suit the number of fixtures and cable length.
Note that effective dimming requires a dimmable transformer and a phase-cut dimmer that is specifically suited to the transformer type. Generally speaking, a dimmable, magnetic 12v landscape transformer requires a leading edge or triac dimmer designed for low voltage magnetic loads. With these systems, dimming down to about 30% should be achieved.
If you are using a smart control system, please check carefully with the supplier to ensure the system is compatible with low voltage magnetic transformers and you may need to use a bridging interface to suit the transformer type.
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Hunza specification sheets may change without notice.
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