From the top surface of the baseboard to the highest projection of the chassis for mounting the light head is 62".

My 45VXL currently has no light head mounted on it because it is in storage. But when I was actively using it, the 45VXL was mounted to the baseboard and the baseboard was set onto a 17.5" high platform and could easily be used with the Beseler Universal head mounted to the chassis at full height in a room with standard height ceiling.