I use it at the top of one of the final fence-posts that hold up a dock on Tull lake in White Lake, MI. It is not super bright (5 Lumens) but it provides enough of a beacon to warn boaters at night that a dock is present jutting out from the shore. It is a maintenance-free way of providing some elegance and safety.

how do we send back lights not working 3 of them, kathy olson. please give us the place to send them back. thanks kathy

Still have not managed to get them to work yet. Sat outside getting whatever sunlight we have, but they do not light.

Put them on my dock posts they do a great job love them

We like the lights and went great on our dock but one was defective.