I know the black box and garmin units can take the higher voltage, but do you need to use a voltage down regulator for humminbird helix 7 and 12. Going to give this a try
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I know the black box and garmin units can take the higher voltage, but do you need to use a voltage down regulator for humminbird helix 7 and 12. Going to give this a try
Specs on HB units is 10.8 - 20v ...
Rickie