940 watt Hortilux 130,000 lumens

Often referred to as the compatible bulb, eyesunlux, superace and the red bulb. It is the only way you will get a metal halide ballast to give you high pressure sodium light (HPS). My favourite. It lasts a long time - 12 to 18 months. Really produces during bloom stage of plants growth. It uses a 1000 watt metal halide ballast.