We put these lights on our deck rails and switched the function to coloured lights. They are really pretty changing from red to blue to green to purple. No issues so far!
The only thing that I would change about them is the fact you have to unscrew them from the deck to switch it back to warm white. That’s way too much of a hassle, especially when you have 8 lights like us, so it’s staying on the colour changing function the whole time (which my husband likes the best anyways. )