Looking for any real world advice on how well these work and if they are worth the 350-600 bucks. I have a 14 year old IG 27000 Gallon with a single light in the deep end underneath the diving board. I have always just had the cheap blue plastic light cover on it. I'm looking for something that produces a lot more light and lights the entire pool up not just the deep end. I'm interested in these but looking for someone that has changed their light out and if they felt it was worth the expense and if the lighting is dramatically different. Also is this something I could replace or have a pool store do? Any advice and comments are appreciated.