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Go Back   SailNet Community > On Board > Gear & Maintenance > Polarity of LED lights
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Thread: Polarity of LED lights Reply to Thread
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Topic Review (Newest First)
07-28-2013 02:12 AM
Omatako
Re: Polarity of LED lights

Quote:
Originally Posted by jimkyle99 View Post
They should be diode protected against a reverse voltage any way but yes, red = hot (+), black = ground (-)
They aren't "diode protected" - they are diodes
07-27-2013 10:43 PM
fryewe
Re: Polarity of LED lights

Quote:
Originally Posted by budvar View Post
However, when checking, I don't notice any difference when reversing the meter prongs to the red and black wires of the new lights. Supposedly, you get a (minus) - if it's backwards. Should I just go ahead and connect the lights, red/hot, black/ground and try them briefly (the mast will be down). Expensive lights, don't want to burn them out needlessly.
Chris:

You can't hurt the lights by wiring them backwards but if they aren't connected with the right polarity they won't work.

Apply 12V to the lights and see if they do. If they do note the polarity of the voltage. If not reverse the polarity of the voltage. Mark the wires. Then make sure the polarity is the same when you raise the mast.
07-27-2013 09:31 PM
jimkyle99
Re: Polarity of LED lights

They should be diode protected against a reverse voltage any way but yes, red = hot (+), black = ground (-)
07-27-2013 09:28 PM
artbyjody
Re: Polarity of LED lights

You'll be fine - just connect and go.
07-27-2013 09:05 PM
budvar
Polarity of LED lights

Hi all,

Just rewired the mast. Changed all lights to LED's. On the instructions, and in "This Old Boat", they mention making sure the polarity is correct when wiring. I do have a new digital multimeter. However, when checking, I don't notice any difference when reversing the meter prongs to the red and black wires of the new lights. Supposedly, you get a (minus) - if it's backwards. Should I just go ahead and connect the lights, red/hot, black/ground and try them briefly (the mast will be down). Expensive lights, don't want to burn them out needlessly.

Thanks!

Chris
Pasco, Wa.

 
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