The Jacuzzi® ClearRay™ Complete unit is the 3rd generation UV unit which is 240v 50/60Hz.
The connector is a DSMT connection and it is suitable for all 2015 and earlier J400™'s, 2015 and earlier J300™'s (240V), 2017 and earlier J200™'s (240V) and 2017 and earlier J100™ and all JLX™ Series Spas.
Please note that the second image showed what the old unit looked like, with plastic ends. This has now been replaced by the part shown in the first image and is a direct replacement.
Part Number. 6472-726