LEDs don't typically heat up very much... but depending on the output on that, you never know.
I would make sure to keep it on for a day and temp gun it at regular intervals to check if it's heating up. As long as it's not more than 95 degrees, I don't think it would be too much of a concern.

Obviously, being a planted tank, the worst it may do is stress out you snake if there aren't enough small dark places to hide.
So that would be the biggest priority before hiding the light fixture itself.

If you move the fixture, the cord may become an issue. Remember taping would be a big no no. Possibly silicone to keep the cord in place?