China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

400w James Ballast simply outperforms the rest. Why buy a 400w magnetic ballast from a Hydroponics store chain that will consume more energy and give you less light? This James ballast puts out 50% more than the competition's magnetic ballasts! See the video! Numbers don't lie. Lighting is the most important factor for gardening and this high quality FCC tested 400w James Ballast will provide great lighting while only running at 2.2 amps. The silent, cool running, and fast starting 400w James Ballast is packed with safety features to ensure great longevity. If there are any circut problems (that can be caused from a faulty bulb or even wire), the ballast will shut off. The 400w James Ballast is resin encoated to ensure that the surrounding environment will not cause any damage. This James ballast is completely switchable and will work with MH and HPS bulbs.