Invisible Sun’s ISH360 Type R is a UK‑made LED grow light kit built around three ISH272‑R boards on a passive heatsink. The Type R spectrum combines full‑spectrum Samsung LM301H whites with Samsung LH351H deep red (660 nm) and far red (730 nm) to leverage the Emerson effect for flowering performance. It is specified for flowering coverage of 4 x 4 ft and ships as a self‑assembly kit with a Mean Well C2100A constant‑current driver. Dimensions are 965 x 205 x 20 mm. System efficacy is listed at 2.61 µmol/J, and LED life is rated 50,000+ hours. The model is marketed as equivalent to a 750 W HID. Power is treated here as 360 W based on the model name.
