Two cables out of conduit

[rower12]

Hey folks

We bought a house this summer with an inground 25k gallon pool. The lights were not working and finally got around it.

When I removed the light out of the fixture I saw two cables coming out of the conduit. The one is going to the light and the other one is going into the the wall and it's sealed with some foam. All the videos I watched on YouTube I didn't see anything like that.

The junction box has only the cable from the light fixture. The second light on the other side is exactly the same(2 cables coming out of that conduit).

I want to replace both light fixtures, Any idea why there two cables coming out?

 

[Texas Splash]

Welcome to TFP! Hard to see in the pic, but I wonder if the cable connected to the niche shell might be the bond wire. @1poolman1 thoughts?

 

[1poolman1]

Welcome to TFP! Hard to see in the pic, but I wonder if the cable connected to the niche shell might be the bond wire. @1poolman1 thoughts?

Second wire is the bond/ground and is attached to the niche then a potting compound is added over the lug. DO NOT remove it.

 

[Bill1974]

The smaller wire looks like it is the bonding wire. Don't remove it. It looks to be done correctly. The terminal is supposed to be covered with a compound to protect it from the pool water. You can check the other end to see if it is connected to other bonding wires.