Fertraso appears in the catalog with its high-pressure sodium (HPS) bulbs, the classic flowering technology for indoor growing. There are two references and they are not interchangeable: 600 W with an E40 screw base, for reflectors and conventional ballasts at 230 V, and 1000 W in Double Ended format, with a double-ended base, for 230/400 V.
Before ordering, it is worth checking what your equipment supports: the Double Ended requires a specific fixture or ballast and does not fit an E40 lamp holder. The supplier does not publish lumens, PPF, or service life for these references, so we do not provide figures we cannot verify.