VYPR 4i is the 800 W model in Fluence’s VYPR 4 top-light series for greenhouses and single-tier indoor rooms. At 400 V AC it typically draws 825–834 W and delivers up to 2,730 µmol/s PPF in the Broad R8 spectrum, with efficacy ranging from 2.8–3.3 µmol/J depending on spectrum and optic. The 4i light bar measures 117 × 10.7 × 9.1 cm and weighs 5.3 kg. Available spectra include PhysioSpec Broad R4 and Broad R8; distribution options are Lambertian clear glass or a Wide Beam optic (R8 only) to enhance uniformity. The fixture is IP66 rated, 0–10 V dimmable, and specified for top-light use in non-stacked indoor and greenhouse environments. Rated lifetime is L90 >50,000 hours with cETLus, CE, UKCA, and DLC listings.