Inon Z240 Aiming buld

Hi

Can the aiming buld in the Inon Z240 version 2 be replaced by the one used in the version 4?

Is it as simple as to replace the buld with a new one or are there more parts which nees to be replaced?

Does anybody know which bulb is being used in the version 4?

Thanks

Is there nobody that knows?

AFAIK, Inon only sells entire internal assemblies as replacement and intergenerational swaps are not possible. From Type 3 onwards, LEDs were used.