T8 HO 4FT LED Grow Lamp Sun White Spectrum

Active Grow’s T8 HO 4FT LED Grow Lamp (40W Eqv.) – Sun White Spectrum is a 22 W ballast-bypass retrofit for T8/T12 fixtures designed for full‑cycle plant growth. The Sun White spectrum (CRI 95) mimics daylight and includes far‑red beyond PAR. Each lamp outputs 41 µmol/s PPF (44 µmol/s PBAR) at 1.86 µmol/J PPF efficacy. The tube uses a G13 base, runs on 120–277 V, and is non‑dimmable. Physical dimensions are 47 x 1.02 x 1.02 in (1194 x 26 x 26 mm); weight 0.40 lb (181 g). Rated lifetime is 30,000 hours with a 3‑year warranty. In brand testing, two of these lamps in a standard T8/T12 fixture delivered uniform coverage over a 2×4 ft area. Pack contains four lamps.