The Ultra Sun High Pressure Sodium (HPS) lamps have a Kelvin temperature rating of 2000°K which is ideal for the fruiting and flowing stages of plants. It is also an excellent lamp for full term plant growth.
Ultra Sun lamps are high quality, feature robust construction and have excellent reliability at an economical price.
These lamps have been specifically engineered for horticulture applications. A ceramic insulation plate, a stainless steel armature, and a newly designed proprietary starter allow this lamp to withstand the acoustic resonance and harmonic distortion of high frequency electronic ballasts.
Good product Review by Dan K
(Posted on October 2, 2015)