Ive been seeing this light used on many reefs (picture) and i read an article from georgia aquarium to find what light they are. It appears they use 14000k hamilton and 6500k sunmaster. I looked this up and they were for the most part decently cheap and had to be switched every 6 months. Whats the reason they are so cheap yet such spectacular aquariums use them. Also. Like queen of reef i think shes called uses these large lamp lights similar to them. I need new lights, mine are 12 years old and now im getting into coral for my 100gallon. Would these be good or are there downsides?