How to Size Low Voltage Transformers for LED Landscape Lighting 

We stock a full line of low voltage transformers for your LED landscape lighting projects. You will find all of them here.

To size your transformer, simply add up the mA consumption of the product you are purchasing to arrive at a total consumption in Amps or milliamps and de-rate that total by 20%.

Example: The Tricluster LED Landscape Lights on this page consume 20mA each.  The 9 Star LED Landscape Lights on the same page consume 60mA each.

If you were going to use 20 Triclusters and 20 9 Stars, you would have:

20 x 20 mA = 400 mA

20 x 60 mA = 1200 mA

Total:  1600 mA

Our smallest transformer, the TX-1A has 1000 mA (1 Amp) total capacity. De-rated by 20%, it has a 800mA max current load.  That would be too small for your project.

Find the transformer on the page that adequately suits your total mA consumption.

We'll be happy to answer your questions. Either give us a call at 1-775-841-4490 M-F 7:30 to 3:30 Pacific Time, or fill out our help form here so we can call or email you.

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