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What is the recommended max cord length for the 12V or a 120V fixture?

For underwater 12V fixture, we recommend not exceeding 50’ of cord length, while for a 120V, it should not exceed 120’ of cord length. If the cord length exceeds the specifications above, there will be a voltage drop. Longer cord lengths can be provided if required but it must be noted that there will be a voltage drop. Please see the voltage drop calculator in the link below which can be calculated using formula: Watts/ Voltage = Amps

 

http://www.calculator.net/voltage-drop-calculator.html?material=copper&wiresize=13.17&voltage=12&phase=ac&noofconductor=1&distance=85&distanceunit=feet&amperes=.75&x=49&y=12

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