T5 HO Ballast Bypass 4FT LED Grow Lamp Sun White Spectrum

Active Grow’s T5 HO Ballast Bypass 4FT LED Grow Lamp (Sun White Spectrum) replaces a 54 W T5 HO fluorescent with a 25 W, high-CRI (95) LED tube designed for horticulture. The Sun White spectrum extends into far‑red for fuller development, while the lamp outputs 53 µmol/s PPF (57 µmol/s PBAR) at 2.12 µmol/J efficiency. It installs in standard 4‑ft T5 fixtures after bypassing the ballast and wiring non‑shunted G5 tombstones to one end; driver accepts 120–277 V. The shatter‑resistant PC body measures 45.63×0.75×0.75 in (1159×19×19 mm) and weighs 0.40 lb. Rated lifetime is 30,000 hours with a 3‑year warranty. Coverage is roughly 1×4 ft per lamp for low‑light crops, inferred from Active Grow’s 4‑ft integrated strip 2‑pack coverage guidance.