Polarity of Optronics Sealed Micro-Flex LED Trailer Side Marker # MCL50RB

Updated 07/11/2018 | Published 07/10/2018

Products Featured in This Question

2-Wire Pigtail for Optronics Trailer Lights - 2-Prong PL-10 Plug - 18" Lead

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Right Angle 2-Wire Pigtail for Optronics Trailer Lights - 2-Prong PL-10 Plug - 6" Lead

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Miro-Flex LED Clearance or Side Marker Light w/ Reflector - Submersible - 9 Diodes - Red Lens

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Question:

HI - I bought several of your MCL50RB LED lights, and an A46PB Right Angle 2-Wire Pigtail for each one. I dont see any polarity markings on the light, and wonder which way is correct to plug them in.

asked by: Mark E

Expert Reply:

The Optronics Sealed Micro-Flex LED Trailer Side Marker # MCL50RB referenced in your question does have polarity, but the PL-10 Plug # A46PB that you also have is designed so that it can only be plugged in one way. This is essentially how you will know which way to plug the harness into the light.

Since LEDs use diodes, if you were to somehow connect the harness backwards, the light simply would not work and you would just need to turn it around and plug it back in. On the harness itself, the white wire is for ground and the black wire is for power.

I have attached an installation video that you can also use for reference.

expert reply by: Chris R