Hello, I wanted to know from anyone, what the general/estimated lifespan for the Red Sea 90s is. I know there will be ranges (output, time running, etc). But who has had theirs over five years and has NOT replaced any parts to them as of yet? I run mine from 10:30 am-9:00 pm (staggered at 15 minutes apart 1hr Ramp) and then moon/lunar until 11:45 pm (Daily 1hr ramp) and estimated 70 Blues and 35 whites...I purchased mine in 2019. I did reach out to RedSea and received a response that included (several factors/variables and they (RS) sell replacement parts to their customers if it comes to that, but never answered the question on an estimated time frame)