Strand Sirio 575W HMIs
I recently got two Strand Sirio 575W HMIs, which are actually rebranded IANIRO HMIs.
Mine are using the GTV standard which I think is pretty exclusive to Europe. Its basically the same as the normal standard but instead of bayonet connectors “VEAM”, these use are screw connectors “GTV” by the company Schaltbau.

I immediately spotted two issues on the ballasts, aside from each having a differently rated circuit breaker (10A and the other 5(6)A), both had circuit breaker with an interruption capacity of only 3kA. In Germany the minimum permissible is 6kA for domestic applications, however in this case since these are device breakers and not for a fixed installation wire you could argue that its probably fine. However I opted to replace them with proper 6kA breakers regardless and also have both be the same (type C4).
One of the ballasts was also missing a cable grommet and had a fairly bad looking power cable. So I replaced the power cable and drilled up the hole and put in a PG16 cable grommet. The other ballast has a Trumpet shaped cable grommet, but I couldn’t find these in the size I needed without being horrendously expensive, so I opted to the one shown.
I then also applied some new matte black high-temperature paint to the lamp heads, which were in bad shape and had some surface rust. I also bent the barn doors back into shape with the help of my hand press and some steel plates and then also applied some fresh matte high-temperature paint.
Turns out my paint job looks exactly the same as the one from the factory, minus the visible layering and scratches since I didn’t bother to strip the old paint off.
I then let both HMIs burn in for some hours for the paint to stop fuming.