AgroMax’s T5 UV-A Plus Flowering Bulbs are 4-foot, high-output T5 fluorescent tubes intended as supplemental lighting for flowering. The UV-A Plus spectrum is primarily 10,000K with added UV-A to complement indoor grow lights that lack ultraviolet, particularly HPS. Each F54T5HO lamp draws 54 watts and fits standard 4‑ft T5 HO fixtures; actual tube length is 45.75 inches. AgroMax specifies these bulbs for use alongside a primary grow light rather than as a sole source. They are compatible only with T5 HO fixtures and will not fit T8 or T12 sockets. Coverage depends on the host fixture and mounting height, and multiple lamps can be used to distribute UV-A more evenly across the canopy during bloom.