400 HPS HO Lamp

Ultra Sun® 400 watt High Output (HO) HPS lamp has a Kelvin temperature rating of 2,000° K which is ideal for the fruiting and flowering stages of plants. With an improved level of PPFD, it is also an excellent lamp for full-term plant growth. 

The Ultra Sun® HO lamps are high quality, feature robust construction and have an excellent reliability at a competitive price.