I have installed a half dozen different integrated LED fixtures in ponds over the years and have had uninspiring results for the most part. Water always does what water does and works its way in. In the upper Midwest here, the conditions are perhaps more harsh on these fixtures than in the south, as even though ponds are drained at the end of the season, snow/sleet/late rains get in the ponds and start the freeze thaw cycle which can be deadly for these fixtures. Seasons aside, are their really reliable integrated LED fixtures out there that anyone can point to? I have never installed an incandescent fixture with LED lamp in a water feature yet - the thinking being that the easier it is to open the fixture, the easier it is for water to invade. But perhaps there are good drop in style fixtures that someone can vouch for? Or is it just a matter of diligent maintenance and perhaps removing fixtures from ponds altogether in the winter. Thoughts?