Valoya’s RX800 is a high-power toplight designed as a 1:1 HID replacement for greenhouses and indoor rooms. Drawing 795 W, the RX800 delivers up to 2470 µmol/s of photosynthetic photon flux with efficacy up to 3.2 µmol/J (S2 spectrum), and is dimmable via 0–10 V/PWM. The all‑aluminum, passively cooled housing with a tempered‑glass cover is rated to IP65 and intended for mounting 0.5–4.0 m above the canopy. The fixture measures 350 × 400 × 170 mm and weighs 11.6 kg. Typical lifetime is Q90 at 50,000 h. RX‑series spectra are plant‑optimized; RX800 is offered with S2 for supplemental and sole‑source use. In Valoya’s medicinal‑cannabis guidance, light simulations commonly use a 1.2 × 1.2 m canopy cell, a practical planning footprint per fixture.