[rustlerski]

I just replaced 12v halogen with 12v Led bulbs on two separate recessed lighting circuits. One has 9 lights, one has 5. On each set of lights, a single bulb is not coming on at the brightness of the others, it's significantly less bright.

I've swapped bulbs so I know it's the specific can location, not the bulb.

I also measured voltage at both the problem locations at it's showing 12v.

What should I check next?

Thanks,

 

[rustlerski]

This turned out to be bad connections between the socket wires and the 12v output from the built in transformer.