The ufo LED light that you have is fine for right now, when your plants are larger they can benefit from more light. If you are able to give your plants a Metal Halide light bulb for vegetative growth you will get more growth then your ufo LED light. your magnetic ballast will most likely use 120volts x 9.5 amps =1140 watts of power. you can clean off your High Pressure Sodium light bulb with a clean paper towel and rubbing alcohol.