Oh I was going to say, LOL!
Yes, those damn pipes need a serious cleaning, but I can state authoritatively that my use of LEDs has also dramatically reduced the algae buildup on my glassware, though I'm not certain how to attribute it. TBS may be right, perhaps it is because there is a lot less "spillover" but I find that the damn fixtures still pump out enough light (though with a noticeable difference in comparison to traditional light bulbs) to make want to have a cover for them on the sides...
I don't know if this is true but I have read reports in saltwater tanks where algae growth was reduced when LED lighting is used. I am not sure if this is correct but it might be attributed to the LED lights we have not being true/full spectrum like T5 or MH. Cleaner spectrum? Not sure, but it's a thought.