thermocouple wiring for recessed lighting

9 years ago

I am currently replacing my halogen recessed lighting fixtures with in-line LED modules, and there is a thermocouple (or "heat sink" as I believe some people call these) wired into each fixture's junction box. Each thermocouple has four wires (red, black, blue and white) and I'm trying to figure out what these four wires are for and how they should be connected to the light fixture.

(There was originally a MR16 Halogen fixture, with a transformer wired in from behind the junction box to step down the voltage. Since I'm replacing the halogen fixture with a 120v LED module/fixture, I disconnected the transformer wiring.)

Can anyone "shed any light" on thermocouple wiring?

thank you

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Comments (3)

cold_weather_is_evil
9 years ago
Halogens can get hot enough to deform their cans. LEDs don't. Want to see some open-air scorching?
abelman
Original Author
9 years ago
Thanks for responding. So you think I should just disconnect the thermocouple?
I thought that might be an option, but I figured I might as well leave them in there as a safety precaution, even if they're not that necessary.
Does this make sense? Do you have any insight into the wiring?

thanks again
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abelman
Original Author
9 years ago
Thanks for responding. So you think I should just disconnect the thermocouple?
I thought that might be an option, but I figured I might as well leave them in there as a safety precaution, even if they're not that necessary.
Does this make sense? Do you have any insight into the wiring?

thanks again