ISH B 60 is a compact 75 W LED board from Invisible Sun LED UK with a blue-forward spectrum aimed at vegetative growth. The unit as rich at 450 nm and dimmable from about 75 W down to 4 W, making it suitable for seedlings, clones, early veg, mother plant maintenance, and as a supplemental fixture. Independent grow write-ups also reference using the ISH B 60 at 75 W during veg. Intended for small spaces or propagation racks rather than as a sole flowering driver, it can pair with larger full-cycle fixtures for balanced coverage.
