What name will be best for this?

[Vojtek]

The additional work lamp is attached to the vehicle's body with a support arm. This arm consists of two parts which are conected together and with the housing of a light with screws. How should I call this metal arm in English. I have to use this name for technical drawing. I was looking this name in the network, but all the samples seemed to be not suitable enough.

[Temico]

I would call the set, "Additional lamp metal props or fixtures."

[Vojtek]

Many thanks. I have also received a reply from my friend who suggest me to call it "adjustable bracket"