Elos AquaTop Marine 120 Strip Replacement

I have a client who has an Elos System 120 that's a few years old. Recently, one of the Blue strips of his AquaTop went out and he asked me to find a new one. Only trouble is Elos does not manufacture this unit anymore and the all-blue strip isn't available from their warehouse in Italy.

Does anyone know of a suitable replacement lamp for the unit? I don't have any more information on the AquaTop other than that it's called the "Elos AquaTop with 3x E-STRIPE for Marine 120 Elos pool." The strip is 24" long. I believe they only make smaller ones now (3" or 7").

Any thoughts or tips would be greatly appreciated.