[Pedr]

Technically, the placement of the left hand light, is dictated by the hull penetration for the conduit for the light.

i.e.

If the hole for the conduit is in the centre of the panel, guards with outside mounted lights should be fitted.

However, if the penetration is closer to the gunners slot rather than the centre, guards with inboard mounted lights should be fitted.

The only variation that I have found to this rule is where a guard with an inboard mounted light has been post production fitted and you will see a 90 degree elbow in the conduit to allow it to head toward the new position.

Pedr