These High output lights come in a variety of spectrums that range from 6500k for a freshwater tank to 100k for daylight and 20000k great for a saltwater aquarium. Double ended HQI units are much smaller in size compared to standard screw in units on many of the older units.
You will find a large selection of Metal halide aquarium lighting in our store @ sale pricing.
Many of these will fit the Viper units we sell such as the k-2 viper Deluxe with fan by jbj lighting