Driving light installation

[Relax]

I have had the lamps for a couple of years , but now needed to tight them.
The nut, inside that hole, with the wire in the midle ( pic 2 ) needs to be tighten.
A wrench or open spanner doesn't fit weel because the hole is relatively tight,  a pipe I can't use because of the wire.
How do you solve this ?

( Cut the wires, remove the reflector W/ bulb, tight the nut and reinstall reflector ? No more easy way? )

[BF]

I took an old spare socket and cut a slice in it with an angle grinder with a cut-off wheel.  

Works like a charm.  

[R J]

If ya don't want to cut a socket, Snap-On makes a socket just for that purpose.  Snap-On stuff is also high priced.   I needed a 1/4 inch short handle ratchet.   I got one out of his trade-in stuff and it still cost me $30.00.   He said new they were $65.00.

Myself, I cut a socket.  Oh yeah, the socket I cut up I bought at the Pawn Shop for a dollar.   I've only used it once in 16 years.    Used it when I installed the Cobra light bar and it hasn't worked loose or needed any more adjustments.

[Pepmyster]

I took an old spare socket and cut a slice in it with an angle grinder with a cut-off wheel.  

Works like a charm.  

Just like my oxygen sensor sockets I have at work. The slice would work great as long as the need for Super Torque is not required.

[MarkT]

Deep well socket with a hex top turned by a combo wrench. Cut the wire and pass it through the center of the socket. Reconnect the wire, use solder and use shrink tube.

[BF]

I took an old spare socket and cut a slice in it with an angle grinder with a cut-off wheel.  

Works like a charm.  

Just like my oxygen sensor sockets I have at work. The slice would work great as long as the need for Super Torque is not required.

It's a driving light...surper torque isn't required on these.....I have the same light bar as the original poster. 

Deep well socket with a hex top turned by a combo wrench. Cut the wire and pass it through the center of the socket. Reconnect the wire, use solder and use shrink tube.

Actually, that's a viable idea, but with my method of cutting a slice in an old socket, there's no need to cut or splice any wiring.  You can't make a complete revolution with the socket, but you don't need to make many to tighten that nut.  Just take the socket off and slide the wires back in and tighten some more. 

[Relax]

Thanks, guys
I'll buy a cheap socket and cut it