SK403 LED Grow Light from Spectrum King LED is a full-spectrum, point‑source fixture drawing 460 W. Rated at 973.6 µmol/s PPF (about 2.1 µmol/J) with a 120° beam, it is positioned by the manufacturer as a 1000 W HPS single‑ended replacement. Recommended coverage is up to 6' x 6' for vegetative growth and 4' x 4' for flowering. The water‑resistant die‑cast aluminum housing suits humid rooms and is safe for outdoor use. Input is 110–277 V AC (480 V optional) with an RJ12 control port; an external dimmer is available. The unit measures roughly 27.9 x 25.4 x 24.1 cm and weighs about 6 kg. Nominal lifetime exceeds 50,000 hours.
