Philips double-ended UV-C 253.7 nm emitting lamps, which lamps offers
almost constant UV-C output over their complete lifetime. They have a
3000 hr  lifetime, which allows maintenance to be planned for in advance.

Product

D (max) -  28mm

A (max) - 894.6mm

B (max) - 901.7mm

C (max) - 908.8 mm