The ISH 3R is a compact LED grow light from Invisible Sun that assembles three of the brand’s Type R strips into a single fixture. Each R strip combines Samsung LM301H white diodes with Samsung LH351H deep‑red (660 nm) and far‑red (730 nm) emitters to harness the Emerson effect in a full‑cycle spectrum. A single R strip is rated at about 59.85 W at 2100 mA; together, three strips deliver roughly 180 W total. Growers commonly deploy the ISH 3R in small flowering spaces around 80 × 80 cm, where its balanced spectrum supports dense canopies with modest power draw. The strips and kits are UK‑manufactured and designed for efficient, even coverage with modern mid‑power LEDs and supplemental reds.
