Invisible Sun’s ISH F Bar V3 is a 240 W modular LED bar fixture aimed at 2×4 ft flowering spaces. The V3 Evo edition uses Samsung LM301H EVO white diodes with deepāred support and is fully dimmable. The brand lists a PPF of about 706 μmol/s at 240 W, an average PPFD near 748 μmol/m²/s at 16 inches, and overall fixture efficiency around 2.9 μmol/J. The housing measures roughly 110 × 25 × 4.5 cm and is built in the UK with CE/ROHS/UKCA compliance. Invisible Sun positions one unit to cover 8 sq ft, with modular expansion for larger areas. Typical operating temperatures are 20–35°C at the rear heatsink and 35–40°C at the driver.
