Osram’s VIALOX NAV‑T 600 W SUPER 4Y is a high‑pressure sodium lamp for professional and horticultural use. The official LEDVANCE datasheet lists a nominal 600 W rating with 615.8 W construction wattage, 110 V lamp voltage and 6.06 A current. It outputs about 90,000 lm at a warm 2000 K (CRI ≤25) and is dimmable on magnetic or electronic ballasts. The clear E40 tubular bulb measures 47 × 285 mm and weighs around 165 g. Rated lifetime (B50) is 32,000 hours, with a service life of roughly four years at around 11 hours per day. In grow applications, retailers specify typical flowering coverage of approximately 120 × 120 cm with a standard reflector, or about 100 × 100 cm when used with an air‑cooled cooltube reflector.