These high output, full spectrum lamps are ideal for plant growth, especially for growing fruits, vegetables, flowers and herbs. They are engineered specifically for horticultural applications. Ultra Sun lamps feature robust construction for superior reliability. We now offer a full line of Ultra Sun brand lamps including HPS, MH, Conversion lamps, and Dual Arc Tube HPS/MH 1000 watt lamps. Excellent quality lamps at an economical price. One year warranty.